functional

 
Pronunciation: /ˈfʌŋ(k)ʃ(ə)n(ə)l/

adjective

  • 1of or having a special activity, purpose, or task: a functional role
  • relating to the way in which something works or operates: there are important functional differences between left and right brain
  • (of a disease) affecting the operation, rather than the structure, of an organ: functional diarrhoea
  • (of a mental illness) having no discernible organic cause: functional psychosis
  • 2designed to be practical and useful, rather than attractive: a small, functional bathroom
  • 3in operation; working: the museum will be fully functional from the opening of the festival
  • 4 Mathematics relating to a variable quantity whose value depends upon one or more other variables: using functional notation, we can write—where L is the transactions demand for money

Derivatives

functionally

adverb
[sentence adverb]: functionally, the role of the library service is clearly educational