(mathematics) A set which is unchanged by a function or other mapping. Formally: a set, S, is a fixed set of a function, f, if and only if for all x in S, f(x)=x.

A hard disk

plural of fixed set

A menu in which the entire meal is offered at a single fixed price / The price of such a meal

(poker) A form of poker game where bets and raises can only be a single size as specified by the rules.

simple past tense and past participle of fix up

Alternative spelling of idée fixe

(computing) Being or using an internal number representation with a fixed number of decimal places (as opposed to floating-point).

Third-person singular simple present indicative form of fix up

Only lasting for an pre-arranged time.