This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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• Wordscraper
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n. One that performs an operation or a function.

n. Grammar See function word.

n. a function word

n. a function object

n. a structure-preserving mapping between categories: if F is a functor from category C to category D, then F maps objects of C to objects of D and morphisms of C to morphisms of D such that any morphism f:X→Y of C is mapped to a morphism F(f): F(X) → F(Y) of D, such that if then , and such that identity morphisms (and only identity morphisms) are mapped to identity morphisms. Note: the functor just described is covariant.

"In the regimented environment of Leśniewski's logical languages this always takes place in the following way: a combining expression, which we may call a functor, precedes a left parenthesis of some kind, which is then followed by a sequence of one or more argument expressions, followed by a right parenthesis symmetric to the other one, which terminates the complex."

contravariant functor    representable functor   

interdental    amino-acid    intellectualist    harmonisation    fricative    acyl    electrophilic    octal