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crista cris·ta (krĭs'tə)
n. pl. cris·tae (-tē)
A ridge, crest, or elevated line projecting from a level or evenly rounded surface.
One of the inward projections or folds of the inner membrane of a mitochondrion.
Plural cristae (krĭs'tē)
Any of the folds of the inner membrane of a mitochondrion. See more at mitochondrion.