| Decimal 1. (a.) Numbered or proceeding by tens; having a tenfold increase or decrease, each unit being ten times the unit next smaller; as, decimal notation; a decimal coinage. 2. (n.) A number expressed in the scale of tens; specifically, and almost exclusively, used as synonymous with a decimal fraction. Thesaurus Entries algorismic, algorithmic, aliquot, cardinal, decagonal, decahedral, decasyllabic, decuple, denary, 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, tenfold, tenth, tithe, transcendental |