Hirundinidae hirundinidae • hirundinous · · · Info · Definitions · Characters · · Hirundinidae · · Text Latin · · Script 12 · · Length 4 · · Syllables Definitions · · · (noun) swallows and martins. Synonyms: family Hirundinidae. · · Noun Definition 1 Characters · · H latin capital letter h U+0048 a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E r latin small letter r U+0072 u latin small letter u U+0075