Monatomic definition

mŏnə-tŏmĭk
Occurring as single atoms.

Helium is a monatomic gas.

adjective
2
0
(chemistry) Of an element, consisting of a single atom in the molecule; for example: the noble gases. Note: strictly speaking, a molecule has at least two atoms.
adjective
2
1
Having one atom in the molecule.
adjective
1
0
adjective
0
0
Consisting of one atom.
adjective
0
0
Advertisement
Containing one replaceable atom or atomic group.
adjective
0
1

Alternative Forms

Alternative Form of monatomic - monoatomic