nitro-

a combining form used in the names of chemical compounds in which the nitro group is present: nitroglycerin.

Also especially before a vowel, nitr-.

Origin of nitro-

combining form of Greek nítron. See niter

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British Dictionary definitions for nitro-

nitro-

before a vowel nitr-

combining form

indicating that a chemical compound contains a nitro group, -NO 2nitrobenzene

indicating that a chemical compound is a nitrate esternitrocellulose

Word Origin for nitro-

from Greek nitron natron

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 nitro-

before vowels nitr-, word-forming element used scientifically and indicating "nitrogen, nitrate" or "nitric acid," from comb. form of Greek nitron (see nitre).

nitro- in Medicine

nitro-

pref.

Nitrate; nitrogen:nitrogenase.

Containing the univalent radical NO2:nitrous.