guanidine

[ gwan-i-deen, -din, gwah-ni- ]

/ ˈgwæn ɪˌdin, -dɪn, ˈgwɑ nɪ- /

Save This Word!

noun Chemistry.

a colorless, crystalline, strongly alkaline, water-soluble solid, CH5N3, used chiefly in the manufacture of plastics, resins, rubber accelerators, and explosives.

QUIZ

WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?

Smoothly step over to these common grammar mistakes that trip many people up. Good luck!

Question 1 of 7

Fill in the blank: I can’t figure out _____ gave me this gift.

who

whom

TAKE THE QUIZ TO FIND OUT

Also called carbamidine, iminourea.

Origin of guanidine

First recorded in 1860–65; guan(o) + -id³ + -ine²

Words nearby guanidine

Guangdong, Guangxi Zhuang, Guangxi Zhuang Autonomous Region, Guangzhou, Guangzhouwan, guanidine, guanine, guanine deaminase, guano, guanosine, guanosine monophosphate

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use guanidine in a sentence

When heated with ammonia it yields guanidine, and on boiling with alcoholic potash it yields potassium carbonate.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3|Various
Hence guanidine from its structural formula is a carbodiamidimide.
Poisons: Their Effects and Detection|Alexander Wynter Blyth
The principle of the method is based upon the fact that guanidine is precipitated by mercurous oxide.
Poisons: Their Effects and Detection|Alexander Wynter Blyth

British Dictionary definitions for guanidine

guanidine

guanidin (ˈɡwɑːnɪdɪn, ˈɡwænɪ-)

/ (ˈɡwɑːnɪˌdiːn, -dɪn, ˈɡwænɪ-) /

noun

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) 2Also called: carbamidine, iminourea

Word Origin for guanidine

C19: from guano + -id ³ + -ine 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