n, pl  cris*tae   1  :  one of the areas of specialized sensory epithelium in the ampullae of the semicircular canals of the ear serving as end organs for the labyrinthine sense - called also crista ampullaris   2  :  a membranous spiral fold running the length of the body of certain spirochetes  3  :  an elevation of the surface of a bone for the attachment of a muscle or tendon  4  :  any of the inwardly projecting folds of the inner membrane of a mitochondrion .
 
 
 
Similar sounding terms:  cre·o·sote  crest  crossed  crust 
 
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