Is “Functor” a Scrabble word?
Yes
FUNCTOR
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Functor
/ˈfʌŋktə/
noun
1.(grammar) A function word.
2.A function object.
3.A category homomorphism; a morphism from a source category to a target category which maps objects to objects and arrows to arrows, in such a way as to preserve domains and codomains (of the arrows) as well as composition and identities.
“In the category of categories, \mathbb{CAT}, the objects are categories and the morphisms are functors.”