(philosophy) of or relating to a monad / (chemistry) univalent / (biology) of or relating to the Monas genus of microorganisms / (mathematics) having an arity of one (taking a single argument or operand)

Of or pertaining to a monarch or monarchy. / Having sole or undivided authority.

A hill or mountain standing isolated above a predominantly flat plain.

In a monastic manner.

plural of monadnock

Rule by a monarchy. / The advocacy of such a political system.

(botany) Having all its stamens within a flower fused together at least partly by the filaments.

A king, queen or other leader of a people who embarks on a quest or defeats or vanquishes a great evil for the general welfare of his/her followers and realm. Often synonymous with the Arthurian hero.

A monarchy that is limited by laws and a constitution.

(logic) The fragment of predicate logic in which all predicate letters are monadic (that is, they take only one argument), and there are no function letters.