Nummulitidae nummulitic • nummulitoid · · · Info · Definitions · Characters · · Nummulitidae · · Text Latin · · Script 12 · · Length Definitions · · · (noun) a family of fossil protoctists. Synonyms: family Nummulitidae. · · Noun Definition 1 Characters · · N latin capital letter n U+004E 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 l latin small letter l U+006C m latin small letter m U+006D t latin small letter t U+0074 u latin small letter u U+0075