basic amino acid(redirected from dibasic amino acid)
ba·sic a·mi·no ac·id
an amino acid containing a second basic group (usually an amino group), for example, lysine, arginine, ornithine.
Synonym(s): dibasic amino acid
basic amino acid
an amino acid that has a positive electric charge in solution at a pH of 7. The basic amino acids are arginine, histidine, and lysine.