Showing results for guanidine. Search instead for guanidins.

guanidine

American

[gwan-i-deen, -din, gwah-ni-] / ˈgwæn ɪˌdin, -dɪn, ˈgwɑ nɪ- /

noun

Chemistry.

a colorless, crystalline, strongly alkaline, water-soluble solid, CH 5 N 3 , used chiefly in the manufacture of plastics, resins, rubber accelerators, and explosives.

guanidine British

/ ˈɡwænɪ-, -dɪn, ˈɡwɑːnɪˌdiːn, ˈɡwɑːnɪdɪn, ˈɡwænɪ- /

noun

Also called: carbamidine. iminourea. a strongly alkaline crystalline substance, soluble in water and found in plant and animal tissues. It is used in organic synthesis. Formula: HNC(NH 2 ) 2

"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 guanidine

First recorded in 1860–65; guan(o) + -id ³ + -ine ²

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Prosecutors have since highlighted the role of the Korean company that made polyhexamethylene guanidine phosphate, or PHMG, the ingredient found to be toxic.

From The Wall Street Journal • Sep. 21, 2016

He told Xinhua that the damaged factory has been producing ammonium sulphate, guanidine nitrate and nitro guanidine.

From BBC • Feb. 28, 2012

When heated with ammonia it yields guanidine, and on boiling with alcoholic potash it yields potassium carbonate.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" by Various

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