groupoid
noun/ˈɡɹuːpɔɪd/
Etymology From group + -oid.
1
Algebra, Mathematics, Sciences A magma: a set with a total binary operation.
2
Algebra, Category theory, Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences A set with a partial binary operation that is associative and has identities and inverses.
- [...] A category in which every morphism is an isomorphism is called a groupoid. This means that a group is a groupoid with only one object. [...]2013, Julia Goedecke, Category Theory:
- Derived terms
- groupoidal, hypergroupoid, Lie groupoid, loopoid, pregroupoid, subgroupoid, zroupoid