Search the Dictionary

, or denoting, any one of a series of compounds of certain metallic elements with organic radicals; as, zinc methyl, sodium ethyl, etc. [Written also metallorganic.]

The act, process, or result of exchange, substitution, or replacement of atoms and radicals; thus, by metathesis an acid gives up all or part of its hydrogen, takes on an equivalent amount of a metal or base, and forms a salt.

The hypothetical hydrocarbon radical CH, regarded as an essential residue of certain organic compounds.

A hypothetical radical, CH3O, analogous to hydroxyl.

A hydrocarbon radical, CH3, not existing alone but regarded as an essential residue of methane, and appearing as a component part of many derivatives; as, methyl alcohol, methyl ether, methyl amine, etc. [Formerly written also methule, methyle, etc.] Methyl alcohol (Chem.), a light, volatile, inflammable liquid, CH3.OH…

A hydrocarbon radical, CH2, not known in the free state, but regarded as an essential residue and component of certain derivatives of methane; as, methylene bromide, CH2Br2; -- formerly called also methene. Methylene blue (Chem.), an artificial dyestuff consisting of a complex sulphur derivative of diphenyl amine; -- c…

Having one hydrogen atom replaceable by a negative or acid atom or radical; capable of neutralizing a monobasic acid; -- said of bases, and of certain metals.

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.

ving the equivalence or replacing power of an atom of hydrogen; univalent; as, the methyl radical is monatomic.

gle, alone; as, monocarp, monopoly; (Chem.) indicating that a compound contains one atom, radical, or group of that to the name of which it is united; as, monoxide, monosulphide, monatomic, etc.

Capable of being neutralized by a univalent base or basic radical; having but one acid hydrogen atom to be replaced; -- said of acids; as, acetic, nitric, and hydrochloric acids are monobasic.

Quality, state, or degree, of a multivalent element, atom, or radical.

A hypothetical radical regarded as the essential residue of myricin; -- called also melissyl.

A compound of naphthalene or its radical with a metallic element; as, mercuric naphthide.

A hydrocarbon radical regarded as the essential residue of naphthalene.

ent state (Chem.), the supposed instantaneous or momentary state of an uncombined atom or radical just separated from one compound acid, and not yet united with another, -- a hypothetical condition implying peculiarly active chemical properties; as, hydrogen in the nascent state is a strong reducer.…

n the former case by a positive or basic, in the latter by a negative or acid, element or radical. -- Neutral tint, a bluish gray pigment, used in water colors, made by mixing indigo or other blue some warm color. the shades vary greatly. -- Neutral vowel, the vowel element having an obscure and indefinite quality, s…

A binary compound of nitrogen with a more metallic element or radical; as, boric nitride.

Any one of a series of cyanogen compounds; particularly, one of those cyanides of alcohol radicals which, by boiling with acids or alkalies, produce a carboxyl acid, with the elimination of the nitrogen as ammonia.

rogen or of its acids, as nitrohydrochloric, nitrocalcite; also, designating the group or radical NO2, or its compounds, as nitrobenzene. Nitro group, the radical NO2; -- called also nitroxyl.