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.

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