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deutero-

1.
a combining form meaning “second,” used in the formation of compound words:
deuterocanonical.
Also, especially before a vowel, deuter-.
Origin
< Greek, combining form of deúteros
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for deutero

deutero-

combining form
1.
second or secondary deuterogamy, deuterium
2.
(in chemistry) indicating the presence of deuterium
Word Origin
from Greek deuteros second
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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deutero in Medicine

deutero- or deuter-
pref.
Second; secondary: deuteropathy.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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deutero in Science
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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