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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples 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
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