Alanine \Al"a*nine\, n. [Aldehyde + the ending -ine. The -n- is
a euphonic insertion.] (Chem.)
one of the natural amino acids found combined in the proteins
of most living tissues. It can be isolated as a white
crystalline base, {C3H7NO2}. The natural form is the
L-configuration.
[1913 Webster +PJC]