We don't have synonyms for monoid yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are conoid, monod and monolid.
(n) :
(algebra, functional programming) A set which is closed under an associative binary operation, and which contains an element which is an identity for the operation.
(adj) :
(prosody) Containing only one kind of metrical foot.
(n) :
(algebra, functional programming) A set which is closed under an associative binary operation, and which contains an element which is an identity for the operation.
(adj) :
(prosody) Containing only one kind of metrical foot.