monatomic

[ mon-uh-tom-ik ]
/ ˌmɒn əˈtɒm ɪk /

adjective Chemistry.

having one atom in the molecule.
containing one replaceable atom or group.
having a valence of one.

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Also monoatomic.

Origin of monatomic

First recorded in 1840–50; mon- + atomic

OTHER WORDS FROM monatomic

mon·a·tom·i·cal·ly, adverb

Words nearby monatomic

monastery, monastic, monasticism, monastral, monathetosis, monatomic, monaul, monaural, monaural diplacusis, monaxial, monazite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for monatomic

British Dictionary definitions for monatomic

monatomic

monoatomic (ˌmɒnəʊəˈtɒmɪk)

/ (ˌmɒnəˈtɒmɪk) /

adjective chem

(of an element) having or consisting of single atomsargon is a monatomic gas
(of a compound or molecule) having only one atom or group that can be replaced in a chemical reaction
a less common word for monovalent
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 monatomic

monatomic
[ mŏn′ə-tŏm′ĭk ]

adj.

Occurring as single atoms.
Having one replaceable atom or radical.
Univalent.

Other words from monatomic

mon′a•tom′ic•al•ly adv.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.