Pertaining to, or connected with, a function or duty; official.
- Of or relating to a function.
- Of, relating to, or indicating a mathematical function or functions.
- Designed for or adapted to a particular function or use: functional architecture.
- Capable of performing; operative: a functional set of brakes.
- Pathology Involving functions rather than a physiological or structural cause.
- A linear function on vectors whose values are scalars.