guanidine

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

noun

, Chemistry.

1. 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

/ ˈɡwænɪ-; -dɪn; ˈɡwɑːnɪˌdiːn; ˈɡwɑːnɪdɪn; ˈɡwænɪ- /

noun

1. 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 Also calledcarbamidineiminourea

Word History and Origins

Origin of guanidine¹

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

Word History and Origins

Origin of guanidine¹

C19: from guano + -id ³ + -ine ²

Example Sentences

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

From Wall Street Journal

Most other airbag makers use guanidine nitrate, which is less volatile.

From BBC

A small number of its inflater models contain a different compound, guanidine nitrate, and Takata said on Friday that it planned to expand production of those.

From New York Times

Takata will continue its air-bag operations by either offering air bags with inflaters made by other companies, or its own inflaters with a different type of propellant based on guanidine nitrate, Mr. Takada said.

From Wall Street Journal

But guanidine itself proved too toxic to humans, so chemists began to synthesize less toxic analogs known as biguanides, including metformin.

From Science Magazine