5. (Chem.) An atom or radical whose valence is one, or which can
combine with, be replaced by, or exchanged for, one atom of hydrogen.
Monad deme (Biol.), in tectology, a unit of the first order of
individuality.
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||Mon`a*da"ri*a (mn`*d"r*), n. pl. [NL. See Monad.] (Zoöl.) The
||Infusoria.
||Mon`a*del"phi*a (?), n. pl. [NL., from Gr. mo`nos alone + 'adelfo`s
||brother.] (Bot.) A Linnæan class of plants having the stamens united
||into a tube, or ring, by the filaments, as in the Mallow family.
{ Mon`a*del"phi*an (?), Mon`a*del"phous (?), } a. [Cf. F. monadelphie.]
(Bot.) Of or pertaining to the Monadelphia; having the stamens united
in one body by the filaments.
{ Mo*nad"ic (?), Mo*nad"ic*al (?), } a. Of, pertaining to, or like, a
monad, in any of its senses. See Monad, n. Dr. H. More.
Mo*nad"i*form (?), a. [Monad + -form.] (Biol.) Having the form of a
monad; resembling a monad in having one or more filaments of vibratile
protoplasm; as, monadiform young.
Mon`ad*ol"o*gy (?), n. [Monad + -logy.] (Philos.) The doctrine or
theory of monads.
Mo*nal" (?), n. (Zoöl.) Any Asiatic pheasant of the genus Lophophorus,
as the Impeyan pheasant.
Mon*am"ide (?), n. [Mon- + amide.] (Chem.) An amido compound with only
one amido group.
Mon*am"ine (?), n. [Mon- + amine.] (Chem.) A basic compound containing
one amido group; as, methyl amine is a monamine.
Mo*nan"der (?), n. (Bot.) One of the Monandria.
||Mo*nan"dri*a (?), n. pl. [NL., from Gr. mo`nos alone + 'anh`r,
||'andro`s, a man.] (Bot.) A Linnæan class of plants embracing those
||having but a single stamen.
Mo*nan"dri*an (?), a.; (Bot.) Same as Monandrous.
Mo*nan"dric (?), a. Of or pertaining to monandry; practicing monandry
as a system of marriage.
Mo*nan"drous (?), a. (Bot.) Of or pertaining to the monandria; having
but one stamen.
Mo*nan"dry (?), n. [See Monandria.] The possession by a woman of only
one husband at the same time; -- contrasted with polyandry.
Mo*nan"thous (?), a. [Mon- + Gr. 'a`nqos flower.] (Bot.) Having but one
flower; one-flowered. Gray.
Mon"arch (?), n. [F. monarque, L. monarcha, fr. Gr. &?;, &?;; mo`nos
alone + &?; to be first, rule, govern. See Archi-.] 1. A sole or
supreme ruler; a sovereign; the highest ruler; an emperor, king, queen,
prince, or chief.
He who reigns Monarch in heaven, . . . upheld by old repute.
Milton.
2. One superior to all others of the same kind; as, an oak is called
the monarch of the forest.