decimal

名词 decimal:

1. a proper fraction whose denominator is a power of 10
   同义词：decimal fraction
2. a number in the decimal system

形容词 decimal:

1. numbered or proceeding by tens; based on ten
   同义词：denary
2. divided by tens or hundreds

1. The first twofigures after the decimal point indicate tenths and hundredthsrespectively.
   小数点後的头两位数分别表示十分位和百分位。
2. Britain converted to a decimal currency system in 1971.
   英国於1971年改行十进制货币体系。
3. The recurring decimal 3.999 ... is also described as 3.9 recurring.
   循环小数｀3.999 ... ＇亦作｀3.9循环＇.
4. A binary-coded decimal code for representing decimal numbers in which each decimal digit is represented by seven binary digits which are coefficients of8,6,4,2,0,1,0, respectively.
   用于表示十进制数的一种二进制编码的十进制码，其中每位十进制数用七位二进制数来表示，它们分别是8,6, 4,2, 0,1和0的系数。五－二码表如下：
5. Most countries have a decimal currency.
   大多数国家使用十进制货币。
6. The base of a system of numbers, such as2 in the binary system and10 in the decimal system.
   基数数字系统的基数，如2是二进制的基数，10是十进制的基数

dec.i.mal

n.Mathematics （名词）【数学】
A linear array of integers that represents a fraction, every decimal place indicating a multiple of a negative power of 0. For example, the decimal 0. = !/0, 0.2 = !"/00, 0.003 = #/000.Also called decimal fraction
小数：表示分数的整数的线性排列，每一个小数点后的位置表示0的负次幂。例如，小数0.== !/0，0.2== !"/00，0.003== #/000也作 decimal fraction
A number written using the base 0.
十进制的数：以0为底的数字
adj.（形容词）
Expressed or expressible as a decimal.
小数的：用小数表示的或能用小数表示的

Based on 0.
以十为底的
Numbered or ordered by groups of 0.
十进位的：以十个一组计数的或以十个一组排列的

来源：
Medieval Latin decim3lis [of tenths or tithes]
中世纪拉丁语 decim3lis [十分之一的]
from Latin decima [a tenth part or tithe]
源自 拉丁语 decima [第十部分]
from decem [ten] * see dekô
源自 decem [十] *参见 dekô

【引伸】
dec.imally
adv.（副词）