# functional
## English
### Etymology

From function +‎ -al.

### Pronunciation

* IPA: /ˈfʌŋkt͡ʃənəl/, /ˈfʌŋkt͡ʃnəl/
* Audio (US):(file)

### Adjective

functional (comparative more functional, superlative most functional)
* In good working order.
** 2002, Ludo Verhoeven, Carsten Elbro, Pieter Reitsma, editors, Precursors of Functional Literacy‎:While we assume that phonological subsyllabic units are functional prior to reading skill, we have not ruled out a possible interaction with the writing system.
* Useful; serving a purpose, fulfilling a function.
    That sculpture is not merely artistic, but also functional: it can be used as a hatrack.
* Only for functional purposes, notably in architecture.
    A functional construction element generally must meet higher technical but lower aesthetical requirements.
* Of or relating to one's role or office; official.
    functional responsibilities
* (mathematics) Of or relating to a function or functions.
* (computing theory) Having semantics defined purely in terms of mathematical functions, without side-effects.
    Synonym: pure
    Antonym: imperative
* (medicine) Of a disease, such that its symptoms cannot be referred to any appreciable lesion or change of structure; opposed to organic disease, in which the organ itself is affected.

#### Synonyms

* functioning, working
* utilitarian

#### Antonyms

* dysfunctional
* non-functional, nonfunctional, unfunctional
* (antonym(s) of “medicine: not referrable to a change of structure”): organic

#### Hyponyms

* algofunctional
* crossfunctional
* difunctional
* hyperfunctional
* hypofunctional
* isofunctional
* metafunctional
* monofunctional
* morphofunctional
* myofunctional
* organofunctional
* parafunctional
* semifunctional
* subfunctional
* ultrafunctional

#### Derived terms

* afunctional
* amphifunctional
* anatomofunctional
* antifunctional
* bifunctional
* biofunctional
* biofunctionalization
* cofunctional
* ecofunctional
* eigenfunctional
* equifunctional
* eufunctional
* functional beverage
* functional constituency
* functional drink
* functional equivalence
* functional graph
* functionalise
* functionalism
* functionalist
* functionalistic
* functionality
* functionalization
* functionalize
* functional linguistics
* functional load
* functionally
* functional music
* functional necrophilia
* functional training
* functional water
* fyborg
* heptafunctional
* heterofunctional
* immunofunctional
* interfunctional
* malfunctional
* monofunctional
* multifunctional
* neurofunctional
* normofunctional
* oligofunctional
* pentafunctional
* plurifunctional
* polyfunctional
* positive linear functional
* prefunctional
* sociofunctional
* structural-functional
* superfunctional
* technofunctional
* teleofunctional
* tetrafunctional
* trifunctional
* unifunctional

#### Related terms

* function
* functional anatomy
* functional application
* functional bombing
* functional constraint
* functional decomposition
* functional dependency
* functional design
* functional diagram
* functional disorder
* functional electrical stimulation
* functional error recovery
* functional failure
* functional food
* functional genomics
* functional group
* functional interleaving
* functional magnetic resonance imaging
* functional MR imaging
* functional programming
* functional psychology
* functional requirement
* functional reserve
* functional residual capacity
* functional root
* functional specifications
* functional switching circuit
* functional unit
* functional work
* functionary
* non-functional requirement
* trivial functional dependency

#### Translations
### Noun

functional (plural functionals)
* (mathematics) A function that takes a function as its argument; more precisely, a function whose argument varies in a space of (real or complex valued) functions and whose value belongs to a monodimensional space.
    An example of a functional is the definite integration of integrable real functions in a real interval.
* (mathematics, functional analysis) A scalar-valued linear function on a vector space.
* (computing) An object encapsulating a function pointer (or equivalent).

#### Derived terms

* functional analysis
* functional analysis diagram
* linear functional

#### Translations
### References

* functional on Wikipedia.Wikipedia

### Further reading

* “functional”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
* William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “functional”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC.
* “functional”, in OneLook Dictionary Search.