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a combining form meaning “left,” “levorotatory,” used in the formation of compound words:
levoglucose; levorotation.
Also, laevo-; especially before a vowel, lev-.
Origin of levo-
representing Latin laevus left, on the left; see -o- Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for levo-


combining form
a US variant of laevo-
Word Origin
from Latin laevus left, on the left
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
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Word Origin and History for levo-

word-forming element meaning "toward the left," from French lévo-, from Latin laevus "left" (see left (adj.)).

Online Etymology Dictionary, © 2010 Douglas Harper
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levo- in Medicine

levo- or lev-

  1. To the left: levorotation.

  2. Levorotatory: levulose.

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