Definify.com

Webster 1913 Edition


Functional

Func′tion-al

(fŭṉk′shŭn-al)
,
Adj.
1.
Pertaining to, or connected with, a function or duty; official.
2.
(Pathology, Physiol.)
Pertaining to the function of an organ or part, or to the functions in general; involving or affecting function rather than physiology;
as,
functional
deafness; a
functional
disease
. See
functional disease
, below.
[wns=2]
Functional disease
(Med.)
,
a disease of which the symptoms cannot be referred to any appreciable lesion or change of structure; the derangement of an organ arising from a cause, often unknown, external to itself opposed to
organic disease
, in which the organ itself is affected.

Definition 2024


functional

functional

English

Adjective

functional (comparative more functional, superlative most functional)

  1. In good working order.
  2. Useful; serving a purpose, fulfilling a function
    That sculpture is not merely artistic, but also functional: it can be used as a hatrack.
  3. Only for functional purposes, notably in architecture
    A functional construction element generally must meet higher technical but lower aesthetical requirements
  4. (computing theory) Having semantics defined purely in terms of mathematical functions, without side-effects.
  5. (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.

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Translations

Noun

functional (plural functionals)

  1. (mathematics) A function that takes a function as its argument; More precisely: A function y=f(x) whose argument x varies in a space of (real valued, complex valued) functions and whose value belongs to a monodimensional space. An example: the definite integration of integrable real functions in a real interval.
  2. (mathematics, functional analysis) A scalar-valued linear function on a vector space.
  3. (computing) An object encapsulating a function pointer (or equivalent).

Translations