The increasing moon; the moon in her first quarter, or when defined by a concave and a convex edge; also, applied improperly to the old or decreasing moon in a like state.

Anything having the shape of a crescent or new moon.

A representation of the increasing moon, often used as an emblem or badge

A symbol of Artemis, or Diana.

The ancient symbol of Byzantium or Constantinople.

The emblem of the Turkish Empire, adopted after the taking of Constantinople.

The emblem of the increasing moon with horns directed upward, when used in a coat of arms; -- often used as a mark of cadency to distinguish a second son and his descendants.

A stylised crescent moon with points upwards.

A half moon with upward-pointing horns; A cadency mark for a second son

The figure of the moon as it appears in its first or last quarter, with concave and convex edges terminating in points.

resembling the new moon in shape

In the shape of a moon in it's first quarter, with the horns pointing up. If the horns point to the dexter side of the shield, it is called an increscent, if the horns point to the sinister side of the shield, it is called a decrescent. Presumably this has something to do with the moon in it's waxing and waning phases.

A shape resembling the curved shape of the moon in its first or last quarters. With regard to vasculitis, a crescent is a pathological finding in the kidney that is observed under the microscope. Crescents are caused by damage to glomeruli, the individual blood-filtering units within the kidney.

the phase of a planet or moon during which less than half the surface is illuminated

A crescent is the shape of the moon shortly before and after the time of the new moon.

represents the new moon and the protective powers of the moon goddess.