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uni-

  1. a combining form occurring in loanwords from Latin (universe), used, with the meaning “one,” in the formation of compound words (unicycle).
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Origin of uni-

< Latin ūni- combining form of ūnus one; see -i-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for uni-

uni-

combining form
  1. consisting of, relating to, or having only oneunilateral; unisexual
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Word Origin for uni-

from Latin ūnus one
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

Word Origin and History for uni-

word-forming element meaning "having one only," from Latin uni-, comb. form of unus (see one).

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Online Etymology Dictionary, © 2010 Douglas Harper

uni- in Medicine

uni-

pref.
  1. Single; one:univalent.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.