| functional | |
| 1. adj. In good working order. | |
| 2. adj. Useful; serving a purpose, fulfilling a function | |
| That sculpture is not merely artistic, but also functional: it can be used as a hatrack. | |
| 3. adj. Only for functional purposes, notably in architecture | |
| A functional construction element generally must meet higher technical but lower aesthetical requirements | |
| 4. adj. (computing theory) Having semantics defined purely in terms of mathematical functions, without side-effects. | |
| 5. adj. (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. | |
| 6. n. (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 | |
| 7. n. (mathematics, functional analysis) A scalar-valued linear function on a vector space. | |
| 8. n. (computing) An object encapsulating a function pointer (or equivalent). | |
