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A hydrocarbon, C6H4.C2O2.C6H4, subliming in shining yellow needles. It is obtained by oxidation of anthracene.

Furnished with cannon. [Poetic] "Gilbralter's cannoned steep." M. Arnold.

A man who manages, or fires, cannon.

The use of cannon. Burke.

A woman who holds a canonry in a conventual chapter. Regular canoness, one bound by the poverty, and observing a strict rule of life. -- Secular canoness, one allowed to hold private property, and bound only by vows of chastity and obedience so long as she chose to remain in the chapter.

See Quinone.

stance obtained in the purification of crude wood vinegar. It is regarded as a complex quinone derivative of diphenyl; -- called also cedriret.

A white crystalline substance, C6H4(OH)2, obtained by the reduction of quinone. It is a diacid phenol, resembling, and metameric with, pyrocatechin and resorcin. Called also dihydroxy benzene.

See Quinone.

See Lignin.

ragrance. In Africa it is a low shrub, but further north it is usually an annual herb. Mignonette pepper, coarse pepper.

A yellow crystalline substance, C10H6O2, analogous to quinone, obtained by oxidizing naphthalene with chromic acid.

Any one of several metameric unsaturated hydrocarbons (C9H14) of the valylene series.

id and regarded as a double ketone; also, by extension, any one of the series of which quinone proper is the type. [Written also chinone, kinone.]

A ketone derivative of thiophene obtained as a white crystalline substance, (C4H3S)2.CO, by the action of aluminium chloride and carbonyl chloride on thiophene.

Any one of a group of quinone compounds obtained respectively by the oxidation of certain xylidine compounds. In general they are yellow crystalline substances.

Any accidental property, fact, or relation; an accidental or nonessential; as, beauty is an accident. This accident, as I call it, of Athens being situated some miles from the sea. J. P. Mahaffy.

Nonessential; not necessary belonging; incidental; as, are accidental to a play. Accidental chords (Mus.), those which contain one or more tones foreign to their proper harmony. -- Accidental colors (Opt.), colors depending on the hypersensibility of the retina of the eye for complementary colors. They are purely subj…

igation; as, to acknowledge a favor, the receipt of a letter. They his gifts acknowledged none. Milton.

Protestants who, with Melanchthon, held some opinions and ceremonies to be indifferent or nonessential, which Luther condemned as sinful or heretical. Murdock.