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oxazine

American  
[ok-suh-zeen, -zin] / ˈɒk səˌzin, -zɪn /

noun

Chemistry.

  1. any of a group of 13 compounds having the formula C 4 H 5 NO, the atoms of which are arranged in a six-membered ring.

oxazine British  
/ ˈɒksəˌziːn /

noun

  1. any of 13 heterocyclic compounds with the formula C 4 H 5 NO

"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

Etymology

Origin of oxazine

First recorded in 1895–1900; ox- + azine

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.