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functional

[fuhngk-shuh-nl] /ˈfʌŋk ʃə nl/
adjective
1.
of or relating to a function or functions:
functional difficulties in the administration.
2.
capable of operating or functioning:
When will the ventilating system be functional again?
3.
having or serving a utilitarian purpose; capable of serving the purpose for which it was designed:
functional architecture; a chair that is functional as well as decorative.
4.
Also, functionalistic. (of a building or furnishing) constructed or made according to the principles of functionalism or primarily as a direct fulfillment of a material need.
5.
Medicine/Medical. without a known organic cause or structural change:
a functional disorder.
Compare organic (def 5).
6.
pertaining to an algebraic operation:
a functional symbol.
7.
Linguistics. (of linguistic analysis, language teaching, etc.) concerned with the communicative role of language rather than, in addition to, or as the framework for its formal structure.
noun
8.
Mathematics. a function that has a domain whose elements are functions, sets, or the like, and that assumes numerical values.
Origin
1625-1635
1625-35; function + -al1
Related forms
functionality, noun
functionally, adverb
hyperfunctional, adjective
hyperfunctionally, adverb
multifunctional, adjective
nonfunctional, adjective
nonfunctionally, adverb
prefunctional, adjective
semifunctional, adjective
semifunctionally, adverb
subfunctional, adjective
subfunctionally, adverb
superfunctional, adjective
unfunctional, adjective
unfunctionally, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for multifunctional

multifunctional

/ˌmʌltɪˈfʌŋkʃənəl/
adjective
1.
having or able to perform many functions

functional

/ˈfʌŋkʃənəl/
adjective
1.
of, involving, or containing a function or functions
2.
practical rather than decorative; utilitarian: functional architecture
3.
capable of functioning; working
4.
(med) affecting a function of an organ without structural change
5.
(psychol)
  1. relating to the purpose or context of a behaviour
  2. denoting a psychosis such as schizophrenia assumed not to have a direct organic cause, like deterioration or poisoning of the brain Compare organic psychosis
noun
6.
(maths) a function whose domain is a set of functions and whose range is a set of functions or a set of numbers
Derived Forms
functionally, adverb
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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Contemporary definitions for multifunctional
adjective

having or fulfilling multiple or many functions

Dictionary.com's 21st Century Lexicon
Copyright © 2003-2014 Dictionary.com, LLC
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Word Origin and History for multifunctional

functional

adj.

1630s; as a term in architecture, "utilitarian," 1928; see function (n.) + -al (1). Related: Functionally; functionality.

Online Etymology Dictionary, © 2010 Douglas Harper
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multifunctional in Medicine

functional func·tion·al (fŭngk'shə-nəl)
adj.

  1. Of or relating to a function.

  2. Affecting the physiological function but not the structure.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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multifunctional in Science
functional
  (fŭngk'shə-nəl)   
Affecting bodily functions but not organic structure, as a disorder such as irritable bowel syndrome. Compare organic.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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22
30
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