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One of the tiles or squares of a tessellated pavement; an abaculus.

One who uses an abacus in casting accounts; a calculator.

Obeisance. [Obs.] Jonson.

Ivory black or animal charcoal. Weale.

Abashed; confounded; discomfited. [Obs.] Chaucer.

A silver coin of Persia, worth about twenty cents.

A means of defense formed by felled trees, the ends of whose branches are sharpened and directed outwards, or against the enemy.

Provided with an abatis.

The supposed origination of living organisms from lifeless matter; such genesis as does not involve the action of living parents; spontaneous generation; -- called also abiogeny, and opposed to biogenesis. I shall call the . . . doctrine that living matter may be produced by not living matter, the hypothesis of abiogen…

One who believes that life can be produced independently of antecedent. Huxley.

nnul; to make void; -- said of laws, customs, institutions, governments, etc.; as, to abolish slavery, to abolish folly.

Capable of being abolished.

One who abolishes.

The act of abolishing; abolition; destruction. Hooker.

The principles or measures of abolitionists. Wilberforce.

A person who favors the abolition of any institution, especially negro slavery.

One who procures abortion or miscarriage.

See Abscission.

See Abscissa.

One of the elements of reference by which a point, as of a curve, is referred to a system of fixed rectilineal coördinate axes.