a combining form meaning “right,” used in the formation of compound words: dextrorotatatory.
Chemistry. a combining form meaning “turning clockwise”: dextroglucose.
Also especially before a vowel, dextr-.

Origin of dextro-

< Latin dextr-, stem of dexter right-hand + -o-, on the model of retro- Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for dextro-


before a vowel dextr-

combining form

on or towards the rightdextrorotation
(in chemistry) indicating a dextrorotatory compounddextroglucose

Word Origin for dextro-

from Latin, from dexter on the right side
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

Medicine definitions for dextro-



On or to the right; right:dextroposition.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.