| designed for or capable of a particular function or use | concerned with actual use or practice |
| involving or affecting function rather than physiology | having or put to a practical purpose or use |
| relating to or based on function especially as opposed to structure | guided by practical experience and observation rather than theory |
| (of e.g. a machine) performing or capable of performing | being actually such in almost every respect |
| designed for or adapted to a function or use | |
| fit or ready for use or service | |