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arbor vitae

American  
[ahr-ber vahy-tee] / ˈɑr bər ˈvaɪ ti /

noun

Anatomy.

  1. a treelike appearance in a vertical section of the cerebellum, due to the arrangement of the white and gray nerve tissues.

arbor vitae British  
/ ˈvaɪtiː, ˈɑːbɔː ˈviːtaɪ /

noun

  1. any of several Asian and North American evergreen coniferous trees of the genera Thuja and Thujopsis, esp Thuja occidentalis, having tiny scalelike leaves and egglike cones See also red cedar

"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

Etymology

Origin of arbor vitae

C17: from New Latin, literally: tree of life

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.