guanidine

gua·ni·dine

noun \ˈgwän-ə-ˌdēn\

Definition of GUANIDINE

: a base CH₅N₃ that is derived from guanine, is found especially in young tissues, and is used in organic synthesis and that in the form of its hydrochloride CH₅N₃·HCl is used as a drug to enhance acetylcholine activity