Monad

Monad, mon′ad, n. an ultimate atom or simple unextended point: a simple, primary element, assumed by Leibnitz and other philosophers: (zool.) one of the simplest of animalcules.—adj. of or pertaining to monads.—adjs. Monac′id, capable of saturating a single molecule of a monobasic acid; Monac′tinal, single-rayed.—n. Mon′adelph, a plant whose stamens are united by their filaments into one set, generally into a tube or ring.—adjs. Monadel′phian, Monadel′phous (bot.), having the stamens united into one body by the filaments; Monad′ic, -al, relating to monads: single; Monad′iform, like a monad.—ns. Mon′adism, Monadol′ogy, the theory of monads.—adj. Monan′thous (bot.), producing but one flower.—n. Mon′as, a monad: a monadiform infusorian.—adj. Monascid′ian, simple, not compound or composite—also n.—adj. Monatom′ic, consisting of a single atom, as a molecule: (chem.) having a valence of one, as hydrogen. [L. monas, -adis—Gr. monas, -ados, a unit—monos, alone.]