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Webster 1913 Edition

Monatomic

Monˊa-tom′ic

,

adv.

[

Mon-

+

atomic

.]

(Chem.)

(a)

Consisting of, or containing, one atom;

as, the molecule of mercury is

monatomic

.

(b)

Having the equivalence or replacing power of an atom of hydrogen; univalent;

as, the methyl radical is

monatomic

.