Dictionary.com

decimal

[ des-uh-muhl, des-muhl ]
/ ˈdɛs ə məl, ˈdɛs məl /
Save This Word!
See synonyms for: decimal / decimals on Thesaurus.com

adjective
pertaining to tenths or to the number 10.
proceeding by tens: a decimal system.
noun
QUIZ
ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.
Question 1 of 8
Which of the following words describes “sky blue”?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of decimal

First recorded in 1600–10; from Medieval Latin decimālis “of tenths,” equivalent to Latin decim(a) “tenth” (derivative of decem “ten” ) + -ālis adjective suffix; see ten, -al1

OTHER WORDS FROM decimal

dec·i·mal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use decimal in a sentence

British Dictionary definitions for decimal

decimal
/ (ˈdɛsɪməl) /

noun
Also called: decimal fraction a fraction that has a denominator of a power of ten, the power depending on or deciding the decimal place. It is indicated by a decimal point to the left of the numerator, the denominator being omitted. Zeros are inserted between the point and the numerator, if necessary, to obtain the correct decimal place
any number used in the decimal system
adjective
  1. relating to or using powers of ten
  2. of the base ten
(prenominal) expressed as a decimal

Derived forms of decimal

decimally, adverb

Word Origin for decimal

C17: from Medieval Latin decimālis of tithes, from Latin decima a tenth, from decem ten
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for decimal

decimal
[ dĕsə-məl ]

A representation of a real number using the base ten and decimal notation, such as 201.4, 3.89, or 0.0006.
A decimal fraction.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK