triatomic

[ trahy-uh-tom-ik ]
/ ˌtraɪ əˈtɒm ɪk /

adjective Chemistry.

having three atoms in a molecule.
having three replaceable hydrogen atoms.
having three replaceable hydroxyl groups.

Origin of triatomic

First recorded in 1860–65; tri- + atomic

OTHER WORDS FROM triatomic

tri·a·tom·i·cal·ly, adverb

Example sentences from the Web for triatomic

British Dictionary definitions for triatomic

triatomic
/ (ˌtraɪəˈtɒmɪk) /

adjective

chem having three atoms in the molecule

Derived forms of triatomic

triatomically, adverb