Definition of monoid in English:

monoid

noun

Mathematics
  • 1A surface which possesses a conical point of the highest possible order (i.e. n − 1, where n is the order of the equation defining the surface). Now rare.

  • 2A semigroup possessing an identity element.

Origin

Mid 19th century (in an earlier sense). From mono- + -oid. With monoid surface, compare French surface monoïde.

Pronunciation

monoid

/ˈmɒnɔɪd/