- The definition of a phase is a distinct period of time in something's development.
- An example of a phase is the final part of a multiple part landscaping project.
- An example of a phase is when you can the various shapes of the moon.
- An example of phase is a period of time during which you are a teenager when you fight with your parents all the time.
- To phase is to do something gradually over a period of time.
An example of phase is when you gradually introduce a new product or you phase in the new product over a few years.
phase definition by Webster's New World
- any of the recurrent stages of variation in the illumination and apparent shape of a moon or a planet
- any of the stages or forms in any series or cycle of changes, as in development
- any of the ways in which something may be observed, considered, or presented; aspect; side; part: a problem with many phases
- Chem. a solid, liquid, or gaseous homogeneous form existing as a distinct part in a heterogeneous system: ice is a phase of HO
- Physics the fractional part of a cycle through which an oscillation, as of light or sound waves, has advanced, measured from an arbitrary starting point
- Zool. any of the characteristic variations in color of the skin, fur, plumage, etc. of an animal, according to season, age, etc.
Origin: Modern Latin phasis ; from Classical Greek ; from phainesthai, to appear, akin to phainein: see fantasy
- to plan, introduce, or carry out in phases, or stages: often with in or into
- to put in phase
- phasic adjective
phase definition by American Heritage Dictionary
- A distinct stage of development: “The American occupation of Japan fell into three successive phases” (Edwin O. Reischauer).
- A temporary manner, attitude, or pattern of behavior: just a passing phase.
- An aspect; a part: every phase of the operation.
- Astronomy One of the cyclically recurring apparent forms of the moon or a planet.
- Physics a. A particular stage in a periodic process or phenomenon.b. The fraction of a complete cycle elapsed as measured from a specified reference point and often expressed as an angle.
- Chemistry a. Any of the forms or states, solid, liquid, gas, or plasma, in which matter can exist, depending on temperature and pressure.b. A discrete homogeneous part of a material system that is mechanically separable from the rest, as is ice from water.
- Biology A characteristic form, appearance, or stage of development that occurs in a cycle or that distinguishes some individuals of a group: the white color phase of a weasel; the swarming phase of locusts.
- To plan or carry out systematically by phases.
- To set or regulate so as to be synchronized.
Origin: Back-formation from New Latin phasēs, phases of the moon, from Greek phaseis, pl. of phasis, appearance, from phainein, to show; see bhā-1 in Indo-European roots.
- phaˈsic adjective
phase - Computer Definition
In a periodic function such as the cyclic variation of an electromagnetic waveform, a relative measurement that describes the relationship between the positions of a signal at two instants in time. In other words, phase is a measurement of the relative position of a waveform at a significant instant of the signal relative to a time scale. Phase is measured in degrees (
phase - Medical Definition
- A characteristic form, appearance, or stage of development that occurs in a cycle or that distinguishes some individuals of a group.
- A discrete homogeneous part of a material system that is mechanically separable from the rest, as is ice from water.
- Any of the forms or states, solid, liquid, gas, or plasma, in which matter can exist, depending on temperature and pressure.
- A particular stage in a periodic process or phenomenon such as a wave form or time pattern.
phase - Phrases/Idioms
in (or out of) phase
out of phase
phase - Science Definition
- Any of the forms, recurring in cycles, in which the Moon or a planet appears in the sky.
- One of a set of possible homogenous, discrete states of a physical system. States of matter such as solid and liquid are examples of phases, as are different crystal lattice structures in metals such as iron. See also phase transition, state of matter.
- A measure of how far some cyclic behavior, such as wave motion, has proceeded through its cycle, measured in degrees or radians. At the beginning of the phase, its value is zero; at one quarter of its cycle, its phase is 90 degrees (π/2 radians); halfway through the cycle its value is 180 degrees (π radians), and so on. ♦ The phase angle between two waves is a measure of their difference in phase. Two waves of the same frequency that are perfectly in phase have phase angle zero; if one wave is ahead of the other by a quarter cycle, its phase angle 90 degrees (π/2 radians); waves that are perfectly out of phase have phase angle 180 degrees (π radians), and so on. See more at wave.