groupoid

[ groo-poid ]
/ ˈgru pɔɪd /

noun Mathematics.

an algebraic system closed under a binary operation.

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What does “Indigenous” mean?
Also called monoid .

Origin of groupoid

First recorded in 1940–45; group + -oid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020