1. Each of the successive aspects or stages in any course of change or development.
2. The view that anything presents to the eye, or any one of varying distinctive manifestations of an object.
3. An aspect in the cycle of changing form or quantity of illumination of the moon or of a planet.
4. A uniform bounded portion of matter that is mechanically separable from a heterogeneous physico-chemical system.
5. The progress of a cyclic harmonic motion in relation to some standard point of reference (in time or space), usually expressed in angular measure, 360 degrees representing a full period or cycle in phase in or of the same phase.
6. One of the distinct stages in the reduction or division process of a cell and any characteristic or decisive stage in the growth, development, or life pattern of an organism.
7. A particular stage, or point, in a sequence through which time has advanced, measured from some arbitrary starting point.
8. Etymology: from French phase and from Modern Latin phases, plural of phasis, "phase" from Greek phainein, "to show, to appear".

To gradually make something happen: Tom was planning systematically to phase the development of a new house for his family.

A liquid extraction that has a lower concentration of material which is being extracted: Dr. Rogers and the chemists were excited with the results of the dilute phase of their newest chemical experiment.

1. An instrument which uses electronic devices; such as, amplifiers and limiters, to change an A.C. voltage into square waves before measuring its phase angle.
2. A phasemeter or a device for measuring the difference in phase of two alternating currents of electromotive forces which makes use of electronic devices; such as, amplifiers and limiters, that convert the alternating-current voltages being measured into square waves whose spacings are proportional to phase.

The limiters mentioned in the above definitions refer to electronic circuits that are used to prevent the amplitudes of electronic waveforms from exceeding specified levels while preserving the shapes of the waveforms at amplitudes less than the specified levels.

Also known as amplitude limiters; amplitude-limiting circuits; automatic peak limiters; clippers; clipping circuits; limiter circuits; and peak limiters.

The modulation (variation of amplitude or frequency) of the phase of a light wave; such as, by changing the index of refraction and the velocity of propagation and hence the phase at a point in the medium in which the wave is propagating, in accordance with an applied field serving as the modulating signal.

A reference to certain insects during the period in which they are clustering in large numbers and are highly active: The agricultural students noticed that during the gregaria phase of the locusts life cycle, they were very noisy and moving around a great deal.

To reduce in stages.

1. A type of electronic modulation in which the phase of a carrier wave is varied in order to transmit the information contained in the signal.
2. Varying the angle of a wave in a carrier in order to transmit analog or digital data.

For digital signals, phase modulation (PM) is widely used in conjunction with amplitude modulation (AM); for example, quadrature amplitude modulation (QAM) uses both phase and amplitude modulation to create different binary states for transmission.

To terminate work on, production of, etc.; step by step and according to a plan.

A substance that undergoes a change of status; such as, by melting, freezing, boiling, or condensing; while absorbing or rejecting thermal energy, normally at a constant temperature.