Définitions
1.AdjectiveIn good working order.
2.AdjectiveUseful; serving a purpose, fulfilling a function."That sculpture is not merely artistic, but also functional: it can be used as a hatrack."
3.AdjectiveOnly for functional purposes, notably in architecture."A functional construction element generally must meet higher technical but lower aesthetical requirements."
4.AdjectiveOf or relating to one's role or office; official."functional responsibilities"
5.AdjectiveCharacterizing functioning in environment, being symptoms that do not presuppose alteration of organic structure.
6.AdjectiveOptimized for all-around physiological benefit."functional coffee; functional fitness"
7.AdjectiveOf or relating to a function or functions.
8.AdjectiveHaving semantics defined purely in terms of mathematical functions, without side-effects.
9.NounA 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."
10.NounA scalar-valued linear function on a vector space.
11.NounAn object encapsulating a function pointer (or equivalent).