natural number

noun

a positive integer or zero.

Origin of natural number

First recorded in 1755–65

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British Dictionary definitions for natural number

natural number

noun

any of the numbers 0,1,2,3,4,… that can be used to count the members of a set; the non-negative integers

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

natural number in Science

natural number

A positive integer.