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crista

[kris-tuh]
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noun, plural cris·tae [kris-tee] /ˈkrɪs ti/. Anatomy, Zoology.
  1. a crest or ridge.
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Origin of crista

1840–50; < Latin: a crest, tuft, comb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for cristae

crista

noun plural -tae (-tiː)
  1. biology a structure resembling a ridge or crest, such as that formed by folding of the inner membrane of a mitochondrion
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Word Origin

C20: from Latin: crest
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

cristae in Medicine

crista

(krĭstə)
n. pl. cris•tae (-tē)
  1. A ridge, crest, or elevated line projecting from a level or evenly rounded surface.
  2. One of the inward projections or folds of the inner membrane of a mitochondrion.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

cristae in Science

crista

[krĭstə]
Plural cristae (krĭs)
  1. Any of the folds of the inner membrane of a mitochondrion. See more at mitochondrion.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.