alanine Syllabification: (al·a·nine)Pronunciation: /ˈaləˌnēn/Definition of alanine noun Biochemistry an amino acid that is a constituent of most proteins. Alternative name: 2-aminopropanoic acid; chemical formula: CH3CH(NH2)COOH. β-alanine, an isomer of this, is 3-aminopropanoic acid, (NH2)CH2CH2COOH Origin: mid 19th century: coined in German as Alanin, from aldehyde + -an (for ease of pronunciation) + -ine4alanine in other Oxford dictionaries Definition of alanine in the British & World English dictionary
