fermat fermail • fermata · · · Info · Definitions · Characters · · fermat · · Text Latin · · Script 6 · · Length 2 · · Syllables Definitions · · · (noun) French mathematician who founded number theory; contributed (with Pascal) to the theory of probability (1601-1665). Synonyms: Fermat, Pierre de Fermat. · · Noun Definition 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 f latin small letter f U+0066 m latin small letter m U+006D r latin small letter r U+0072 t latin small letter t U+0074