aythya americana aythya affinis • aythya ferina · · · Info · Definitions · Synonyms · Characters · · aythya americana · · Text Common · · Latin · · Scripts 16 · · Length 8 · · Syllables Definitions · · · (noun) North American diving duck with a grey-and-black body and reddish-brown head. Synonyms: redhead, Aythya americana. · · Noun Definition 1 Synonyms · · · redhead · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E r latin small letter r U+0072 t latin small letter t U+0074 y latin small letter y U+0079