a combining form meaning “second,” used in the formation of compound words: deuterocanonical.
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Also especially before a vowel, deuter-.
Origin of deutero-
<Greek, combining form of deúteros
Words nearby deutero-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for deutero-
deuto-, before a vowel deuter- or before a vowel deut-
second or secondarydeuterogamy; deuterium
(in chemistry) indicating the presence of deuterium
Word Origin for deutero-
from Greek deuteros second
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
Medical definitions for deutero-
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for deutero-
A prefix meaning second or secondary, as in deuterostome, an animal whose mouth is the second opening to develop.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.