[ vair-ee-uh-buhl ]
/ ˈvɛər i ə bəl /



Origin of variable

1350–1400; late Middle English < Latin variābilis, equivalent to vari(us) various + -ābilis -able

Related forms

Can be confused

boundary limit parameter variable (see synonym study at boundary) (see usage note at parameter)variable variant Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for variable

British Dictionary definitions for variable


/ (ˈvɛərɪəbəl) /



Derived Forms

variability or variableness, nounvariably, adverb

Word Origin for variable

C14: from Latin variābilis changeable, from variāre to diversify
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

Medicine definitions for variable


[ vârē-ə-bəl, văr- ]


Likely to change or vary; subject to variation; changeable.
Tending to deviate, as from a normal or recognized type; aberrant.
Having no fixed quantitative value.


Something that varies or that is prone to variation.
A quantity that is capable of assuming any of a set of values.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for variable


[ vârē-ə-bəl ]

A mathematical quantity capable of assuming any of a set of values, such as x in the expression 3x + 2.
A factor or condition that is subject to change, especially one that is allowed to change in a scientific experiment to test a hypothesis. See more at control.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.