Functor (disambiguation)

A functor, in mathematics, is a map between categories.

Functor may also refer to:

• Predicate functor in logic, a basic concept of predicate functor logic
• Function word in linguistics
• In computer programming:
  • Functor (functional programming)
  • Function object used to pass function pointers along with state information
  • for use of the term in Prolog language, see Prolog syntax and semantics
  • In OCaml and Standard ML, a functor is a higher-order module (a module parameterized by one or more other modules), often used to define type-safe abstracted algorithms and data structures.