: the point or stage in a period of uniform circular motion, harmonic motion, or the periodic changes of any magnitude varying according to a simple harmonic law to which the rotation, oscillation, or …

Phase comparison is a comparison of the phase of two waveforms, usually of the same nominal frequency. In time and frequency, the purpose of a phase comparison is generally to determine the …

A phase is one of the forms in which matter can exist, such as solid, liquid, or a gas.

1. any distinct or characteristic period or stage in a sequence of events or chain of development: there were two phases to the resolution; his immaturity was a passing phase.

Definition of phase noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

2 days ago · (astronomy) A particular appearance or state in a regularly recurring cycle of changes with respect to quantity of illumination or form, or the absence, of a body's illuminated disk. Illustrated in …

Phase definition: A distinct stage of development.

Moon Phase for today: Dec 14, 2025 The Moon's current phase for today and tonight is a Waning Crescent phase. This phase is best viewed just before the sunrise in the western sky. In this phase …

PHASE definition: any of the major appearances or aspects in which a thing of varying modes or conditions manifests itself to the eye or mind. See examples of phase used in a sentence.

a stage in a process of change or development: Each phase of life brings its own joys. a side, aspect, or point of view: This is only one phase of the question.