Dictionary.com

functional

[ fuhngk-shuh-nl ]
/ ˈfʌŋk ʃə nl /
Save This Word!
See synonyms for: functional / functionality on Thesaurus.com

adjective

noun

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

QUIZZES

QUIZ YOURSELF ON AFFECT VS. EFFECT!

In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.

Origin of functional

First recorded in 1625–35; function + -al1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for 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
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

Medical definitions for 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.

Scientific definitions for 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.
Learning At Home Just Got Easier!