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a fragment; refuse; -- commonly used in the plural. Milton. Let him have time a beggar's orts to crave. Shak.

Any one of numerous small two-winged flies of the family Ortalidæ. The larvæ of many of these flies live in fruit; those of others produce galls on various plants.

A brachiopod shell of the genus Orthis, and allied genera, of the family Orthidæ.

An extinct genus of Brachiopoda, abundant in the Paleozoic rocks.

A variety of allanite occurring in slender prismatic crystals.

A combining form signifying straight, right, upright, correct, regular; as, orthodromy, orthodiagonal, orthodox, orthographic.

Designating a complex ether, C.(OC2H5)4, which is obtained as a liquid of a pleasant ethereal odor by means of chlorpicrin, and is believed to be a derivative of the hypothetical normal carbonic acid, C.(OH)4.

That point in which the three perpendiculars let fall from the angles of a triangle upon the opposite sides, or the sides produced, mutually intersect.

An extinct genus of Paleozoic Cephalopoda, having a long, straight, conical shell. The interior is divided into numerous chambers by transverse septa.

An orthoceras; also, any fossil shell allied to Orthoceras.

Common or potash feldspar crystallizing in the monoclinic system and having two cleavages at right angles to each other. See Feldspar.

Breaking in directions at right angles to each other; -- said of the monoclinic feldspars.

The diagonal or lateral axis in a monoclinic crystal which is at right angles with the vertical axis.

See the Note under Dome, 4.

ctrines taught in the Scriptures; -- opposed to Ant: heretical and Ant: heterodox; as, an orthodox Christian.

Pertaining to, or evincing, orthodoxy; orthodox. [R.] Milton.

Orthodoxness. [R.]

Orthodoxly. [R.] Milton

Orthodox. [Obs.]

Pertaining to, or evincing, orthodoxy; orthodox.