1 of 2


variants or less commonly guanido
: relating to or containing the group H2NC(=NH)NH− of guanidine


2 of 2

combining form

variants or less commonly guanido-
: containing the univalent group H2NC(=NH)NH− derived from guanidine by removal of one hydrogen atom

Word History



guanidino-, guanido-

Combining form

guanidino-, International Scientific Vocabulary, from guanidine + -o-; guanido- from guanidine + -o-

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Dictionary Entries Near guanidino

Cite this Entry

“Guanidino.” Dictionary, Merriam-Webster, Accessed 17 Jun. 2024.

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