functional

中文： 功能的

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. Of or relating to one's role or office; official. · functional responsibilities
5. Characterizing functioning in environment, being symptoms that do not presuppose alteration of organic structure.
6. Optimized for all-around physiological benefit. · functional coffee· functional fitness
7. Of or relating to a function or functions.
8. Having semantics defined purely in terms of mathematical functions, without side-effects.