a colorless gas, HI, having a suffocating odor: the anhydride of hydriodic acid.
When Did “Chemical” Become Such A Toxic Word?When people see the word chemical, it tends to inspire fear, but should it?
Origin of hydrogen iodide
First recorded in 1895–1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for hydrogen iodide
a colourless poisonous corrosive gas obtained by a catalysed reaction between hydrogen and iodine vapour: used in making iodides. Formula: HI
an aqueous solution of this gas; hydriodic acid
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