: 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, …

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

State of matter, or phase, one of the distinct forms in which matter can exist Phase (matter), a region of space throughout which all physical properties are essentially uniform

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

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.

Oct 16, 2025 · (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 …

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.

The first phase of the project is scheduled for completion next year. My younger daughter is going through a phase of only wearing black. (Definition of phase from the Cambridge Learner's …

For example, the moon has phases. The seasons of the year, spring, summer, fall, and winter, are also phases. The planet Venus has phases, like the moon: Galileo showed that the phases of …

The Moon has four primary and four intermediate lunar phases during a lunar month. Here's all you need to know about each phase of the lunar cycle.