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

Nearby words

  1. unhurried,
  2. unhurt,
  3. unhusk,
  4. unhygienic,
  5. uni,
  6. unialgal,
  7. uniat,
  8. uniate,
  9. uniates,
  10. uniaxial

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. 2019

British Dictionary definitions for uni-


combining form

consisting of, relating to, or having only oneunilateral; unisexual

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).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for uni-



Single; one:univalent.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.