proline proligerous • proliquor · · · Info · Definitions · Characters · · proline · · Text Latin · · Script 7 · · Length Definitions · · · (noun) an amino acid that is found in many proteins (especially collagen). · · Noun Definition 1 Characters · · e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072