Dictionary 1. (a.) Of or pertaining to fractions or a fraction; constituting a fraction; as, fractional numbers.2. (a.) Relatively small; inconsiderable; insignificant; as, a fractional part of the population. Thesaurus algorismic algorithmic cardinal decimal differential digital even exponential figural figurate figurative finite fractional imaginary impair impossible infinite integral irrational logarithmic logometric negative numeral numerary numerative numeric odd ordinal pair positive possible prime radical rational real reciprocal submultiple surd transcendental |