[trahy-ok-sahyd, -sid]
noun Chemistry.
an oxide containing three oxygen atoms, as As 2 O 3 .

1865–70; tri- + oxide Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To trioxide
World English Dictionary
trioxide (traɪˈɒksaɪd)
any oxide that contains three oxygen atoms per molecule: sulphur trioxide, SO3

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

trioxide tri·ox·ide (trī-ŏk'sīd') or tri·ox·id (-ŏk'sĭd)
An oxide containing three oxygen atoms per molecule.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Example sentences
Toxic fumes of arsenic trioxide and arsine may be formed in fire situations.
Determine the pharmacokinetics of arsenic trioxide with and without tretinoin in these patients.
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature