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To defend by declamation; to advocate loudly. [Obs.] "Declaims his cause." South.

A hydrocarbon radical, C10H21, never existing alone, but regarded as the characteristic constituent of a number of compounds of the paraffin series.

An invocation of, or address to, the Supreme Being.

One who advocates or encourages defection.

One who defends; one who maintains, supports, protects, or vindicates; a champion; an advocate; a vindicator. Provinces . . . left without their ancient and puissant defenders. Motley.

A defender or an advocate in court; a guardian or protector.

The act of defying, putting in opposition, or provoking to combat; a challenge; a provocation; a summons to combat. A war without a just defiance made. Dryden. Stood for her cause, and flung defiance down. Tennyson.

A tribe of Indians formerly inhabiting the valley of the Delaware River, but now mostly located in the Indian Territory.

One who is an adherent or advocate of democracy, or government by the people. Whatever they call him, what care I, Aristocrat, democrat, autocrat. Tennyson.

ded as derived from it; thus, the amido compounds are derivatives of ammonia, and the hydrocarbons are derivatives of methane, benzene, etc.

ual or theoretical substitution; as, to derive an organic acid from its corresponding hydrocarbon.

A group of fishlike animals including the Marsipobranchiata and Leptocardia.

A gatepost or doorpost. [Local Eng.] C. Kingsley.

e in the lurch; to abandon; to forsake; -- implying blame, except sometimes when used of localities; as, to desert a friend, a principle, a cause, one's country. "The deserted fortress." Prescott.

ms nearly related to it; a variety or subdivision of a language; speech characterized by local peculiarities or specific circumstances; as, the Ionic and Attic were dialects of Greece; the Yorkshire dialect; the dialect of the learned. In the midst of this Babel of dialects there suddenly appeared a standard English la…

A volatile, pungent, liquid hydrocarbon, C6H10, consisting of two allyl radicals, and belonging to the acetylene series.

A liquid hydrocarbon, C10H20, of the ethylene series, regarded as a polymeric form of amylene.

A liquid hydrocarbon, C8H18, of the marsh-gas series, being one of several octanes, and consisting of two butyl radicals. Cf. Octane.

A gentleman's shirt collar. [Local, U. S.]

f a language, arranged alphabetically, with explanations of their meanings; a lexicon; a vocabulary; a wordbook. I applied myself to the perusal of our writers; and noting whatever might be of use to ascertain or illustrate any word or phrase, accumulated in time the materials of a dictionary. Johnson.…