(organic chemistry, especially in combination) A univalent radical derived from guanidine

(biochemistry) A hydrolase enzyme whose substrates are 3-guanidinopropanoate and water and whose products are beta-alanine and urea.

(biochemistry) glycocyamine

(biochemistry) A hydrolase enzyme that catalyzes the reaction of guanidinoacetate and water into glycine and urea.

(biochemistry) A hydrolase enzyme that catalyzes the reaction of 4-guanidinobutanoate and water into 4-aminobutanoate and urea.

(organic chemistry) A mutagenic N-guanidino derivative of hydantoin, 1-(2,4-dioxo-1-imidazolidinyl)guanidine

(organic chemistry) The amidino derivative of aspartic acid (2S)-2-(diaminomethylideneamino)butanedioic acid

(organic chemistry) Any salt of guanidinosuccinic acid (its presence in the bloodstream is a symptom of uremia)