rhesus rhesian • rhesus factor · · · Info · Definitions · Synonyms · Characters · · rhesus · · Text Latin · · Script 6 · · Length 2 · · Syllables Definitions · · · (noun) of southern Asia; used in medical research. Synonyms: rhesus monkey, Macaca mulatta. · · Noun Definition 1 Synonyms · · · rhesus monkey · · Synonym 1 macaca mulatta · · Synonym 2 Characters · · e latin small letter e U+0065 h latin small letter h U+0068 r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075