amino-

1.
a combining form used in the names of chemical compounds in which the amino group is present:
aminobenzene.
Also, -amine; especially before a vowel, amin-.
Origin
amine + -o-
British Dictionary definitions for amino-

amino-

combining form
1.
indicating the presence of an amino group: aminobenzoic acid
Word Origin
from amine
Word Origin and History for amino-

1887, as an element in compound words involving chemicals, from comb. form of amine. Amino acid is attested from 1898.

amino- in Medicine

amino- pref.
Containing the radical NH2 combined with a nonacid organic radical: aminobenzoic acid.