1) Amino acid 2) Aminoalkanoic acid 3) Amino acid 
L-(+)-(S)-Canavanine is a non-proteinogenic α-amino acid found in certain leguminous plants. It is structurally related to the proteinogenic α-amino acid L-arginine, the sole difference being the replacement of a methylene bridge (-{chem|CH|2}- unit) in arginine with an oxa group (i.e., an oxygen atom) in canavanine. Canavanine is accumulated pr...
<chemical> Chemical name: L-Homoserine, O-((aminoiminomethyl)amino)- ... (12 Dec 1998) ... 
Type: Term Pronunciation: kan′ă-van′īn Definitions: 1. an analogue of arginine found in certain legumes; used in studies of arginine-dependent systems; it is also a potent growth inhibitor.
[n] - an amino acid found in the jack bean
noun an amino acid found in the jack bean