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Medical Term:

phase

Pronunciation: faz

Definition:

  1. A stage in the course of change or development.
  2. A homogeneous, physically distinct, and separable portion of a heterogeneous system; a mixture of oil, gum, and water are three phases of an emulsion.
  3. The time relationship between two or more events.
  4. A particular part of a recurring time pattern or wave form.

[G. phasis, an appearance]

See Also: stage, period

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