decimal fraction

See more synonyms for decimal fraction on
noun Arithmetic.
  1. a fraction whose denominator is some power of 10, usually indicated by a dot (decimal point or point) written before the numerator: as 0.4 = 4/10; 0.126 = 126/1000.

Origin of decimal fraction

First recorded in 1650–60 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for decimal point

dot, period, point

British Dictionary definitions for decimal point

decimal point

  1. a full stop or a raised full stop placed between the integral and fractional parts of a number in the decimal system


Conventions relating to the use of the decimal point are confused. The IX General Conference on Weights and Measures resolved in 1948 that the decimal point should be a point on the line or a comma, but not a centre dot. It also resolved that figures could be grouped in threes about the decimal point, but that no point or comma should be used for this purpose. These conventions are adopted in this dictionary. However, the Decimal Currency Board recommended that for sums of money the centre dot should be used as the decimal point and that the comma should be used as the thousand marker. Moreover, in some countries the position is reversed, the comma being used as the decimal point and the dot as the thousand marker

decimal fraction

  1. another name for decimal (def. 1)
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

decimal point in Science

decimal point

  1. A period used in decimal notation to separate whole numbers from fractions, as in the number 1.3, which represents 1 + 310.

decimal fraction

  1. A decimal having no digits to the left of the decimal point except zero, such as 0.2 or 0.00354.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

decimal point in Culture

decimal point

The point or dot placed to the left of decimals to separate them from the whole number portion of the decimal. When the number is spoken aloud, the word point is usually used to signify the decimal point. For example, “8.3” is read “eight point three.”

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.