Also found in: Thesaurus, Idioms.
n. pl. cran·nies
A small opening, as in a wall or rock face; a crevice.
[Middle English crani, perhaps alteration of Old French cren, cran, notch, from crener, to notch, from Vulgar Latin *crināre, probably of Gaulish origin and akin to Irish ara-chrin, he decays, fails, withers.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.