tridacnidae tridacna gigas • Tridacnidae · · · Info · Definitions · Characters · · tridacnidae · · Text Latin · · Script 11 · · Length 3 · · Syllables Definitions · · · (noun) large marine hard-shell clams. Synonyms: Tridacnidae, family Tridacnidae. · · Noun Definition 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 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 t latin small letter t U+0074