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variable

[vair-ee-uh-buh l] /ˈvɛər i ə bəl/
adjective
1.
apt or liable to vary or change; changeable:
variable weather; variable moods.
2.
capable of being varied or changed; alterable:
a variable time limit for completion of a book.
3.
inconstant; fickle:
a variable lover.
4.
having much variation or diversity.
5.
Biology. deviating from the usual type, as a species or a specific character.
6.
Astronomy. (of a star) changing in brightness.
7.
Meteorology. (of wind) tending to change in direction.
8.
Mathematics. having the nature or characteristics of a variable.
noun
9.
something that may or does vary; a variable feature or factor.
10.
Mathematics, Computers.
  1. a quantity or function that may assume any given value or set of values.
  2. a symbol that represents this.
11.
Logic. (in the functional calculus) a symbol for an unspecified member of a class of things or statements.
12.
Astronomy, variable star.
13.
Meteorology.
  1. a shifting wind, especially as distinguished from a trade wind.
  2. variables, doldrums (def 2a).
Origin
late Middle English
1350-1400
1350-1400; late Middle English < Latin variābilis, equivalent to vari(us) various + -ābilis -able
Related forms
variability, variableness, noun
variably, adverb
hypervariability, noun
hypervariable, adjective
hypervariably, adverb
nonvariability, noun
nonvariable, adjective
nonvariableness, noun
nonvariably, adverb
unvariable, adjective
unvariableness, noun
unvariably, adverb
Can be confused
boundary, limit, parameter, variable (see synonym study at boundary; see usage note at parameter)
variable, variant.
Synonyms
3. vacillating, wavering, fluctuating, unsteady, mercurial.
Antonyms
1, 3. constant.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for hypervariability

variable

/ˈvɛərɪəbəl/
adjective
1.
liable to or capable of change: variable weather
2.
(of behaviour, opinions, emotions, etc) lacking constancy; fickle
3.
(maths) having a range of possible values
4.
(of a species, characteristic, etc) liable to deviate from the established type
5.
(of a wind) varying its direction and intensity
6.
(of an electrical component or device) designed so that a characteristic property, such as resistance, can be varied: variable capacitor
noun
7.
something that is subject to variation
8.
(maths)
  1. an expression that can be assigned any of a set of values
  2. a symbol, esp x, y, or z, representing an unspecified member of a class of objects, numbers, etc See also dependent variable, independent variable
9.
(logic) a symbol, esp x, y, z, representing any member of a class of entities
10.
(computing) a named unit of storage that can be changed to any of a set of specified values during execution of a program
11.
(astronomy) See variable star
12.
a variable wind
13.
(pl) a region where variable winds occur
Derived Forms
variability, variableness, noun
variably, adverb
Word Origin
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
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Word Origin and History for hypervariability

variable

adj.

late 14c., of persons, from Old French variable, from Latin variabilis "changeable," from variare "to change" (see vary). Of weather, seasons, etc., attested from late 15c.; of stars, from 1788.

n.

"quantity that can vary in value," 1816, from variable (adj.). Related: Variably; variability.

Online Etymology Dictionary, © 2010 Douglas Harper
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hypervariability in Medicine

variable var·i·a·ble (vâr'ē-ə-bəl, vār'-)
adj.

  1. Likely to change or vary; subject to variation; changeable.

  2. Tending to deviate, as from a normal or recognized type; aberrant.

  3. Having no fixed quantitative value.

n.
  1. Something that varies or that is prone to variation.

  2. 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.
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hypervariability in Science
variable
  (vâr'ē-ə-bəl)   
  1. A mathematical quantity capable of assuming any of a set of values, such as x in the expression 3x + 2.

  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 © 2002. Published by Houghton Mifflin. All rights reserved.
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