decimal
1. dec.i.mal \'des-*-m*l\ \-m*-le-\ aj [(assumed) NL decimalis, fr. ML, of a tithe, fr. L decima tithe] : numbered or proceeding by tens : : based on the number 10 : subdivided into 10th or 100th units : expressed in a decimal fraction - dec.i.mal.ly av 2. decimal n : a proper fraction in which the denominator is a power of 10 usu. not exp ressed but signified by a point placed at the left of the numerator (as .2=2/10, .25=25/100, .025=25/1000)