A particular appearance or state in a regularly recurring cycle of changes with respect to quantity of illumination or form of enlightened disk; as, the phases of the moon or planets. See Illust. under Moon.

Any one point or portion in a recurring series of changes, as in the changes of motion of one of the particles constituting a wave or vibration; one portion of a series of such changes, in distinction from a contrasted portion, as the portion on one side of a position of equilibrium, in contrast with that on the opposite side.

The relation at any instant of a periodically varying electric magnitude, as electro-motive force, a current, etc., to its initial value as expressed in factorial parts of the complete cycle. It is usually expressed in angular measure, the cycle beb four right angles, or 360°. Such periodic variations are generally well represented by sine curves; and phase relations are shown by the relative positions of the crests and hollows of such curves. Magnitudes which have the same phase are said to be in phase.

the relation at any instant of any cyclically varying physical quantity, such as voltage in an A.C. circuit, an electromagnetic wave, a sound wave, or a rotating object, to its initial value as expressed as a fractional part of the complete cycle. It is usually expressed in angular measure, the complete cycle being 360°.

A homogenous, physically distinct portion of matter in a system not homogeneous; as, the three phases, ice, water, and aqueous vapor. A phase may be either a single chemical substance or a mixture, as of gases.

a substance with uniform composition and definite physical state.

A phase is homogeneous in itself and has the same composition, the same hardness, the same density, the same conductivity, etc. at each position.

In the context of oil wells: oil, gas or water. Two phase: a mixture of oil/water, gas/water or gas/oil. Three phase: a mixture of gas/oil and water.

The six major components of a project.; Business Assessment, Design Requirements, Installation, Detail Design/Development, Testing, and Implementation.

Series of related activities during a projectâ€(tm)s lifecycle, usually culminating in the completion of a major deliverable.

a prescribed set of one or more activities normally performed serially to accomplish specific project work. One or more phases make up a project. The sequence by which they are executed indicates the project structure (methodology) and usually has "deliverables" associated with them.

Means a segment of the work required to complete a Project with an associated Budget, Scope of Work, timeline and anticipated Matching Contributions.

wire for electricity. Most house are wired with two 120 VAC phases.

Electrical service is usually found in either single or triple phase, utilizing two or three hot legs of 120 volt. Three phase electrical panels need to have their loads balanced for proper electrical service.

Classification of an AC circuit. Usually, circuits are rated single-phase two wire or three wire or three-phase three wire or four wire. Single-phase transformers can be used on a three-phase source when two wires of the three-phase system are connected to the primary of the single-phase transformer. The secondary will be single-phase.

Vibrations that add to and strengthen each other are in-phase. Out-of-phase vibrations cancel each other, weakening the signal. Microphones, sound systems, electronics and speakers always should be positioned and wired so that their vibrations are in-phase to sound best.

An identifiable stage in the course of a local conflict based on the MIT Model. The three phases coded for CASCON are dispute, conflict, and hostilities -- Phases 1, 2 and 3. (Phase 4 of the model is post-hostilities with the conflict continuing, Phase 5 is post-hostilities with only the dispute continuing, and Phase S is settlement, with the dispute terminated. Phases 4, 5 and S are shown in the Precis and the Case Detail screens but are not coded.

One of the five contexts in which the narrative and meaning of a work of literature may be considered, classified as literal, descriptive, formal, archetypal, and anagogic. One of six distinguishable stages of a mythos (sense 2).

any distinct time period in a sequence of events; "we are in a transitional stage in which many former ideas must be revised or rejected"

arrange in phases or stages; "phase a withdrawal"

Used to describe timing eg In phase maens the timing is the same.

a characteristic time or time-rock interval during which characteristic depositional systems were formed

a period of time where a person acts differently than they used to and then after a while they go back to being like their old selves

a significant growth period for a character

size of the illuminated portion of a planet or moon.

the ratio of the illuminated area of the apparent disk of a celestial body to the area of the entire apparent disk taken as a circle. For the Moon; phase designations (see lunar phases) are defined by specific configurations of the Sun, Earth and Moon. For eclipses, phase designations (total, partial, penumbral, etc.) provide general descriptions of the phenomena. (See eclipse, solar; eclipse, annular; eclipse, lunar.)

(astronomy) the particular appearance of a body's state of illumination (especially one of the recurring shapes of the part of Earth's moon that is illuminated by the sun); "the full phase of the moon"

The percentage illumination, from the observer's perspective, of an object (normally planet or Moon).

a subdivision of an operation

a subdivision of a series, used only where necessary in soils mapping

a subdivision of a type, having characteristics worthy of recognition, yet not sufficiently different from the typical soil to justify the establishment of a new type

A subdivision of a plant association or a habitat type representing minor differences in climax vegetation or environmental conditions, respectively.

That which is exhibited to the eye; the appearance which anything manifests, especially any one among different and varying appearances of the same object.

Any appearance or aspect of an object of mental apprehension or view; as, the problem has many phases.

Aspect of fact in sufficiently developed statement to exhibit definite spatial and temporal localizations.

In certain birds and mammals, one of two or more color variations characteristic of the species, but independent of the ordinary seasonal and sexual differences, and often also of age. Some of the herons which appear in white and colored phases, and certain squirrels which are sometimes uniformly blackish instead of the usual coloration, furnish examples. Color phases occur also in other animals, notably in butterflies.

a difference in transition of a frequency

A term used to describe the timing between two or more events tied to the same frequency.

In most game systems, each game turn is made up of several steps, often known as Phases. All actions in one step must be completed before the next Phase can begin, and the Phases must be played strictly in the order listed. For instance, a very simple game turn might be divided into these phases: Move Phase, Fire Phase, and Morale Phase. A Phase may be divided into parts as well, sometimes known as Sub-Phases.

A group of homesites or lots within a community. Most home builders sell all homes within a current phase before moving on to the next phase of release in the community. The benefit to the homebuyer is that construction activity is focused in one small area. When you move into your home most of the construction for neighboring homes will already be completed.

A group of lots within a community. Most homebuilders sell all the lots within the current phase before moving on to the next phase of the community. The benefit to the homebuyer is that construction activity is focused in one small area at a time. So when you move in to your new home, most of the construction for neighboring homes will already be complete. Builders "release" a new phase when the current phase is almost sold out. This means that there is now a completely new selection of lots, which are available for purchase.

NASA uses this shorthand to describe where a mission is in the pipeline. "Phase A" is called "concept study". This generally means that a mission has been selected for further study in a competition (often in response to an AO [see above]); this generally results in a "Phase A study", which is essentially a more detailed proposal. Once a mission is selected for flight, it enters "Phase B" which is "definition and preliminary design", which ends with a preliminary design review (PDR). "Phase C" or "detailed design" terminates with a critical design review (CDR), and "Phase D" is "development through launch and checkout", which usually terminates approximately 30 days after launch. "Phase E" is "operations and data analysis".

a large-scale concept

a set Sets are one of the most important and fundamental concepts in modern mathematics

May be continuous, as the basic product flowing through a housing; or discontinuous, as the material to be removed from the basic product. Both are distinct and separate.

closed region of a material without discontinuous changes of the physico-chemical volume properties, e.g. density, chemical composition

In the Willey and Phillips scheme, a phase is a distinctive cultural entity represented by specific sites or levels within sites, similar to other definitions of a focus. In the Midwestern Taxonomic System of McKern, a phase is a larger unit composed of several aspects, which can be broken down into even more foci (Cassells 1997:337).