monatomic

About 0.16 uses per million words.

Meaning

1. adjective 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.

Similar words

monoatomic diatomic molecular homoatomic monomolecular monocarbon monobromated monocoordinated monadic monocovalent

Often followed by

gas gases molecules ideal and ions layer hydrogen molecule