triazine

[ trahy-uh-zeen, -zin, trahy-az-een, -in ]
/ ˈtraɪ əˌzin, -zɪn, traɪˈæz in, -ɪn /

noun Chemistry.

any of a group of three compounds containing three nitrogen and three carbon atoms arranged in a six-membered ring and having the formula C3H3N3.
any of a number of their derivatives.

Origin of triazine

First recorded in 1890–95; tri- + azine

British Dictionary definitions for triazine

triazine

triazin (ˈtraɪəzɪn, traɪˈæzɪn)

/ (ˈtraɪəˌziːn, -zɪn, traɪˈæziːn, -zɪn) /

noun

any of three azines that contain three nitrogen atoms in their molecules. Formula: C 3 H 3 N 3
any substituted derivative of any of these compounds