Decimal Definition

dĕsə-məl

decimals

noun

decimals

A fraction with an unwritten denominator of 10 or some power of 10, indicated by a point (decimal point) before the numerator (Ex.: .5 =⁵₁₀)

Webster's New World

Such an array of digits in which there are no nonzero digits to the left of the decimal point, representing a real number between −1 and 1.

American Heritage

Any number written using a decimal point.

Webster's New World

(informal) A decimal place.

Pi has a value of 3.141, to three decimals.

Wiktionary

Synonyms:

adjective

(arithmetic, computing) Concerning numbers expressed in decimal or mathematical calculations performed using decimal.

Wiktionary

Expressed or expressible as a decimal.

American Heritage

Of or based on the number 10; progressing by tens.

Webster's New World

Numbered or ordered by groups of 10.

American Heritage

Synonyms:

Other Word Forms of Decimal

Singular:

decimal

Plural:

decimals

Medieval Latin decimālis of tenths or tithes from Latin decima a tenth part or tithe from decem ten dekm̥ in Indo-European roots

From American Heritage Dictionary of the English Language, 5th Edition
From Medieval Latin decimalis, from Latin decimus, from decem, ten + adjective suffix -alis

From Wiktionary