Definition of guanidine in English:

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Pronunciation: /ˈɡwänəˌdēn/


A strongly basic crystalline compound, used in organic synthesis.
Example sentences
  • Although a molecule of guanidine contains only five hydrogen atoms, it can effectively store nine by extracting hydrogen from the water recovered from the exhaust.
  • However, experience with guanidine and biguanides prompted the development of metformin.
  • When guanidine hydrochloride is present these complexes dissociate into smaller units.


Mid 19th century: from guano + -ide + -ine4.

For editors and proofreaders

Syllabification: guan·i·dine

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