functional

[ fuhngk-shuh-nl ]
/ ˈfʌŋk ʃə nl /
|

adjective

noun

Mathematics. a function that has a domain whose elements are functions, sets, or the like, and that assumes numerical values.

Nearby words

  1. function key,
  2. function shift,
  3. function space,
  4. function word,
  5. functionable,
  6. functional ,
  7. functional analysis,
  8. functional anatomy,
  9. functional blindness,
  10. functional calculus

Origin of functional

First recorded in 1625–35; function + -al1

Related forms
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for non-functional

  • All structure, according to Roux, is either functional or non-functional.

    Form and Function|E. S. (Edward Stuart) Russell
  • Non-functional structure is not affected by functional adaptation, and may accordingly be left out of consideration here.

    Form and Function|E. S. (Edward Stuart) Russell


British Dictionary definitions for non-functional

functional

/ (ˈfʌŋkʃənəl) /

adjective

of, involving, or containing a function or functions
practical rather than decorative; utilitarianfunctional architecture
capable of functioning; working
med affecting a function of an organ without structural change
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 brainCompare organic psychosis

noun

maths a function whose domain is a set of functions and whose range is a set of functions or a set of numbers
Derived Formsfunctionally, 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

Word Origin and History for non-functional

functional

adj.

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

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for non-functional

functional

[ fŭngkshə-nəl ]

adj.

Of or relating to a function.
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.

Science definitions for non-functional

functional

[ fŭngkshə-nəl ]

Affecting bodily functions but not organic structure, as a disorder such as irritable bowel syndrome. Compare organic.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.