A longitudinal timber, or series of timbers scarfed together, extending from stem to stern along the bottom of a vessel. It is the principal timber of the vessel, and, by means of the ribs attached on each side, supports the vessel's frame. In an iron vessel, a combination of plates supplies the place of the keel of a wooden ship. See Illust. of Keelson.
Fig.: The whole ship.
The two lowest petals of the corolla of a papilionaceous flower, united and inclosing the stamens and pistil; a carina. See Carina.
A projecting ridge along the middle of a flat or curved surface.
In a dirigible, a construction similar in form and use to a ship's keel; in an aëroplane, a fin or fixed surface employed to increase stability and to hold the machine to its course.
To turn up the keel; to show the bottom.
The major structural member in a traditional wooden vessel, to which the frames, transom, stem, and lower-most planks are fastened. By extension, the meaning refers to a lengthwise fin under the hull used to provide lateral resistance when sailing.
Longitudinal girder at the lowest point of a vessel from which the framework is built.
(for a foldable boat) the inflatable lengthwise part found under the boat, between the boat bottom and the floor. The inflatable keel is a supplementary safety compartment.
Longitudinal girder at the lowest point of a ship.
A projection below the hull running from stern to bow, which helps the craft maintain straight movement. It also adds strength to the hull, and protects it from damage.
A central dorsal ridge; the two united petals in some legume flowers
The body of the shell that runs from box to stern.
a longitudinal ridge, at the back of the leaf.
The centerline at the bottom of the boat.
the lowest and principal timber of a wooden ship - the single strongest member of the ship's frame.
A flat surface built to the bottom of vessel to prevent leeway caused by wind and to keep the boat in an upright position.
The boat's steadiness.
A boat-shaped structure formed by the two lower petals of many members of the Leguminosae. [ GO BACK TO TOP INDEX
To have keel is to have a balanced, level boat. This also is the term for the center line of the shell (lengthwise).
This is the lowest length-ways timber upon which the framework of the rest of the vessel is built. In short, it is the "backbone" of a boat.
1. The backbone of a boat running fore and aft; 2. A finlike member projecting down from the hull that provides resistance to leeward and weight to control heeling
heavy fin filled with lead ballast under the hull. It prevents the boat from slipping sideways by resisting the lateral force of the wind. It gives the boat stability.
The main structural member of a hull (backbone): underwater extension of hull to increase lateral resistance and stability.
The main structural member of a vessel extendingalong the center of the bottom; the lateral area beneath the hull.
A long, flat board mounted vertically underneath the hull of a sailing boat, to give increased stability. A full keel runs along the whole length of the boat beneath the waterline. A fin keel runs only for a relatively short stretch underneath the middle of the boat.
a longitudinal timber that extends along the center of the bottom of a boat.
Ridge that runs along the middle of the vertebral scutes of the carapace part of the shell. Not all turtles and tortoises have keels; Sawbacks and Map turtles have the most prominent keels of North American turtles.
The main center-line structural member, running fore and aft along the bottom of a ship, sometimes referred to as the backbone.
This is the lowest piece of timber that runs along the bottom length of a ship.
The principal timber in a boat, vessel, etc., extending from the bow to the stern along the bottom and supporting the whole frame.
n. The folded edge or ridge of any structure; a ridge like the keel of a boat; in particular, a boat-shaped structure formed by fusion of the two anteriorpetals of a flower in Fabaceae.
Ridge resembling a boat's keel, as in the glumes of certain grasses. The inferior petal in the flowers of legumes.
The steadiness of the boat. If the boat alternates leaning from side to side, it is a sign of bad technique.
The summit of a ridge bearing the raphe in taxa whose valves are sharply angled at the raphe (e.g., Nitzschia)
The two united petals of a papilionaceous flower; any structure ridged like the bottom of a boat.
The ridge running the length of a canoe on the bottom.
Principal timber upon which the hull is constructed. The backbone of the hull.
an elevated ridge or carina
n. (AS. ceol, ship) the folded edge or ridge of any structure.
A type of boat once in extensive use on the Yorkshire rivers and canals, they measure approximately 58 feet long by 14 feet beam.
The Backbone of a boat that runs longitudinally from the bow to the stern Report this Word Added by: X_MAN
continuous ridge or raised surface.
a thin, raised edge that runs along the dorsal surface of the tail
A central ridge (like the keel of a boat); also the two lower petals of a pea-like flower (when joined to form a keel).
a flat-bottomed vessel, especially of the kind that was used for loading coal-ships.
The principal piece of timber on which the vessel is built.
the lowest structural member of a ship or boat which runs the length of the vessel at the centerline and to which the frames are attached.
principal bottom structural element of a ship, extending along the centerline for the full length of the ship
The main structural component of a vessel, running lengthwise from bow to stern.
a ridge like the keel of a boat; in Fabaceae, a boat-shaped structure formed by fusion of the two anterior petals of a flower.
A central longitudinal ridge. [SR
a sharp compressed edge on the ventral surface of the body between the paired fins; or on the lateral surface of the caudal peduncle
the longitudinal ridge.
A raised or elevated ridge that contains the raphe, formed from a folding of the valve wall
the median ridge on the breastbone of birds that fly
one of the main longitudinal beams (or plates) of the hull of a vessel; can extend vertically into the water to provide lateral stability
a moulded ridge or attached piece of material that runs the length of the canoe on the bottom outside of the boat to help the canoe track and resist the influence of crosswinds
A central, dorsal ridge like the keel of a boat.
A prominent ridge shaped like the keel of a boat; in some members of the pea family (Fabaceae) referring to the lower, boat-shaped petal of the flower that encloses the ovary and stamens.
the ridge of bone running medio-longitudinally along the sternum to which the flight muscles attach.
A raised ridge along a scale or scute. Some snakes and lizards have keels along their scales, while others have smooth scales. Some turtles have a keel down the centre of their carapace.
The lowest and principle timber of a wooden vessel, or the lowest continuous of plates on a steel or iron vessel. On a yacht, the keel might be iron, lead or steel affixed along the outside, and below, of the wood keel by large bolts, called keel bolts. On modern racing yachts, the keel is usually in the form or a fin, cast in iron, steel or lead, and bolted through the hull to special frames within. It has a long leading edge to “bite” in the water and help when making to windward, but its comparatively short length allows the yacht to manoeuvre more handily.
raised ridge down the back, tail, or scale
a ridge, commonly referring to ridges on shells of turtles or scales of snake
The lower petal or petals when shaped like the keel of a boat.
The sharp fold at the back of a sheath, blade, glume, or lemma in the Family Poaceae or the united lower petals of the flowers in the Family Fabaceae. Similar to the keel of a boat.
the continuous section of a vessel running from the bow (front) to the stern (back) on which the vessel is built, the backbone of the vessel
the lowest portion of the hull of a ship.
The raised central portion of breastbone of a bird to which the large flight muscles (pectorals) are attached.
The fused lower two petals of a Pea flower.
The fin attached to the underside of the hull. It is filled with lead ballast to provide upright stability and prevent sideslipping by countering the lateral force of the wind
The chief structure of the ship that extends lengthwise along the center of the ship's bottom-the ship's backbone
The principle longitudinal timber in most vessels. The keel is terminated at either end of the vessel in the stem and stern posts, which together form the backbone of the hull assemblage. In composite, or iron or steel construction, when the keel is set below the frames (as in wooden construction) it is called a bar keel. When the iron keel is set between the frames it is termed an intercostal keel. When no keelson is apparent, the frames being let directly into the keel with no extension above or below the frames themselves, the assembly is termed a continuous vertical keel.
The lateral area beneath the hull to provide steering stability, reduce leeway and increase overall stability.
The central member on the bottom of the hull, extending from bow to stern.
A structural projection below a boat's hull that runs longitudinally from bow to stern. The keel adds strength to the hull and helps maintain a straight course.
The two united lowermost petals of the flowers of some plants in the pea family.
A median ridge on a scale.
part of the boat that is perpendicular to the bottom of the hull, along the centreline
The large bone running vertically up the bird's breast. This is the site of the breast muscle's attachment and is a very important bone. The term feel the keel means to put the keel between your thumb and finger and judge the amount of fat and muscle along the sides of this ridge. A healthy, well muscled bird will have a dense padding along the sides and barely any ridge of the bone to be felt. A bird who is in low condition will have a sharp ridge of bone sticking out with very little muscle or fat along side. A fat bird without a lot of muscle will be well padded, but not with dense muscle. Because of the way that falcons are structured, they will tend to be better muscled than a comparable hawk. They depend on those muscles more than a hawk does and the muscles reflect that.
The bottom extension of the hull of a sailboat. A keel may reach down to a depth of eight feet or more, depending on the size of the boat. It is usually made of a very heavy material such as lead and it provides lateral stability and prevents the boat from slideslipping when under sail.
The backbone running down the center of the body of the shell from bow to stern.
The principal fore-and-aft component of a ship's framing located along the centerline of the bottom and connected to the stem and stern frames. Also see bilge keel, center vertical keel, even keel, and flat plate keel
the balance of the boat. Good keel means that the stability of the boat is good. "keep keel" is a command often heard fromthe coxwain when the boat starts to sway.
The bottom portion of the ship submerged in water.
Technically, the structural member running the length of the boat at the bottom of the hull. Today, some shells are built without this member so the term often refers to the center line of the shell.
A ridge down the center of a scale. Very sharp keeling may make an animal appear quite rough. In general, an animal with keeled scales will appear less shiny and lustrous than one with unkeeled scales, as the keeling causes the reflected light to scatter.
the lowest petal of a flower, resembling the wings of a butterfly.
The lower, pouchlike lip of flowers of certain members of the bean family. The keel is formed by the fusion of two petals. The boat-shaped structure formed by the two lower petals of many members of the Leguminosae.
a longitudinal ridge (like the keel of a boat).
A ridge on the carpace, usually extending from the rear to the the front.
A strip or extrusion along the bottom of a boat to prevent (theoretically) side-slipping. Adds rigidity or hull support.
Nautical term describing a steel line of metal plates running lengthwise along the middle of the bottom of a ship - like a spine.
a line of plates running along the centreline of a ships bottom forming the backbone of the ship frame; usually thicker than other plates beside it
main structural tube that runs along sail at center chord of wing.
Longitudinal girder at lowest point of a ship, from which the framework is built up. The keel provides ship with stability and structural integrity.
The centerline of a boat running fore and aft; the backbone of a vessel.
The structure at the bottom of a vessel. Depth aboard a submarine is measured from the bottom of the keel.
The two lower petals of the flowers of the legume or pea family.
the fixed underwater fin on the hull which helps provide stability and prevents the boat from slipping sideways a main structural member, the backbone of the ship running longitudinally along the bottom from stem to stern; also the vertical downward extension of a sailboat's bottom, usually ballasted, for stability and lateral resistance.
A weighted extension of a boat running below it that prevents the boat from sliding sideways.
a fin down the centerline of the bottom of the hull
A fixed, fin-shaped protrusion on the bottom of the hull that prevents a boat from sliding sideways.
the hull's centerline that runs fore and aft; a boat's backbone.
The ridge of any structure formed by a fold, alluding to its resemblance to the keel of a boat.
A ridge on the back of a leaf or bud scale.
member running along the centre line of a wooden boat to which the ribs and knees are attached
The centerline of a ship running from fore to aft. Think of it as the spine, or backbone of a ship.
A ridge; the two united front petals of a flower.
The two anterior united petals of a flower.
Heavy 'fin' filled with lead ballast under the hull. A keel gives a yacht stability, resisting the lateral force of the wind and sea.
The birds breast bone.
timber or steel structure along the base of a ship
Centre line of the rowing shell, running bow to stern along the bottom of the boat.
A projection below the hull, running from stern to bow, which adds strength to the hull, protects it from damage, and helps the craft maintain straight movement, though the last is a result of the use of a keel, not the reason the keels are built into metal and wooden craft. Keels usually are found only on aluminum and wooden canoes.
A fin at the bottom of the hull that prevents the boat from moving sideways in the water. The keel also converts the sideways pressure of the wind into forward boat movement.
The bottom-most portion or longitudinal centerline of a hull.
Ridge or crease more or less centrally located on the long axis of a structure.
Longitudinal extension of the ship's underside, important for balance
A ridge shaped part of a reptile.
a boat-shaped structure &endash; in the pea family (Fabaceae) formed by the joining of the two lower petals.
the bit that sticks down into the water. See fin and bulb
A stopping device for your boat. It works by contacting the bottom of the water body you are in, thus inhibiting forward motion.
Center line of shell, running from bow to stern along the bottom; in construction, strengthening member to which ribs are attached (like the backbone in the human body); also, term designating stability with which shell moves through the water. For example, a shell that doesn't wobble has "good keel."
Centerline of the boat along the bottom. In shells, this does not mean a ridge or projection that helps the boat track straight; see fin.
Some canoes have a keel that you can see, running along the bottom on top of the canvas, that helps the boat track in a straight line. Canoes so built have more rounded bows for better riding. To have or to have not a keel is a perennial debate among canoe fanciers.
the centerline bottom of the ship, running from bow to stern.
A keel is a part of the boat that extends vertically below the bottom of the hull, in the middle, and is designed for stabilization of the boat. Foldable boats have inflatable keels that you can fold up with the rest of the boat.
A flat surface built into the bottom of the boat to reduce the leeway caused by the wind pushing against the side of the boat. A keel also usually has some ballast to help keep the boat upright and prevent it from heeling too much.
The ridge of keratin found on the midline of the carapace of Terrapene carolina
The chief, structural member of a ship extending along the entire length of the bottom of a ship.
a prominent ridge on the scale, running longitudinally. Found in some snakes.
The bottom portion of the vessel submerged in water.
The measurement from a ship's bow to it's stern. Used mostly by shipbuilders in determining the dimensions of a vessel.
The portion of the hull which protrudes farthest beneath the water line, usually ballasted to provide stability.
Main centerline (backbone) of a vessel or the extension of hull that increases stability in the water
A sharp or conspicuous longitudinal ridge; also the two partly united lower petals of many Fabaceae.
The breastbone, which resembles the keel of a boat.
the backbone of a vessel, running fore and aft along the center line of the bottom of the hull
A strip or protrusion along the bottom of the boat to prevent side-slipping.
The main supporting timber of a sailing vessel that runs the length of the ship and is centrally located; known as the backbone of a ship
The bottom of the dragonship's hull. Often made from a dragon's backbone. (See rigging illustration.)
Main centerline structural member (backbone) of a boat. Also, downward extension of hull to increase lateral resistance and stability.
A ballasted appendage projecting below the boat that keeps it from capsizing, and also supplies the hydrodynamic lateral force that enables the boat to sail upwind.
In canoe design, a narrow spine running down the centerline of the bottom. Helps tracking in short canoes and will help the canoe's resistance to crosswinds by reducing sideslipping. Not so advantageous in whitewater or where quick maneuverability is essential. Generally not recommended for wilderness canoes excepting those of aluminum which require a keel to join the two halves of the boat.
the timber at the very bottom of the hull to which frames are attatched.
In boats and ships, keel can mean either of two parts; a structural element, or a hydrodynamic element; these parts overlap.
A keel in bird anatomy is an extension of the sternum which runs axially along the midline of the sternum and extends outward, perpendicular to the plane of the ribs. The keel provides an anchor to which a bird's wing muscles attach, thereby providing adequate leverage for flight. Keels do not exist on all birds; in particular, some flightless birds lack a keel structure.