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Pertaining to Orpheus; Orphean; as, Orphic hymns.

A band of rich embroidery, wholly or in part of gold, affixed to vestments, especially those of ecclesiastics. Pugin.

Arsenic sesquisulphide, produced artificially as an amorphous lemonyellow powder, and occurring naturally as a yellow crystalline mineral; -- formerly called auripigment. It is used in king's yellow, in white Indian fire, and in certain technical processes, as indigo printing. Our orpiment and sublimed mercurie. Chauce…

The orpine.

alls, in England, and has become naturalized in America. Called also stonecrop, and live-forever. [Written also orpin.]

See Orach.

An apparatus which illustrates, by the revolution of balls moved by wheelwork, the relative size, periodic motions, positions, orbits, etc., of bodies in the solar system.

A plant of the genus Iris (I. Florentina); a kind of flower-de- luce. Its rootstock has an odor resembling that of violets. Orris pea (Med.), an issue pea made from orris root. -- Orris root, the fragrant rootstock of the orris.

Leaf metal of bronze; Dutch metal. See under Dutch.

See Archil.

Pertaining to, or designating, an acid found in certain lichens, and called also lecanoric acid. [Formerly written also orseillic.]

Pertaining to, or designating, an organic acid obtained by a partial decomposition of orsellic acid as a white crystalline substance, and related to protocatechuic acid.

A morsel left at a meal; 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.

ating 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.

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