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A genus of shrubs and small treets. See Sumac.

A mixtire of caustic lime and orpiment, or tersulphide of arsenic, -- used in the depilation of hides. Knight.

Same as Cirrus.

See Scirrhus.

a creaking sound when incised. [Sometimes incorrectly written schirrus; written also skirrhus.]

See Scirrhus.

r) and the white ash (F. Americana). Prickly ash (Zanthoxylum Americanum) and Poison ash (Rhus venenata) are shrubs of different families, somewhat resembling the true ashes in their foliage. -- Mountain ash. See Roman tree, and under Mountain.

The wood of the Rhus Cptinus or Venice sumach, a shrub of Southern Europe, which yields a fine orange color, which, however, is not durable without a mordant. Ure.

losely related to the Virginia creeper. -- Poison ivy (Bot.), an American woody creeper (Rhus Toxicodendron), with trifoliate leaves, and greenish-white berries. It is exceedingly poisonous to the touch for most persons. -- To pipe in an ivy leaf, to console one's self as best one can. [Obs.] Chaucer. -- West Indian…

glossy black when dry. -- Japan varnish, a varnish prepared from the milky juice of the Rhus vernix, a small Japanese tree related to the poison sumac.

must be accepted or endured. Udall. Pill beetle (Zoöl.), any small beetle of the genus Byrrhus, having a rounded body, with the head concealed beneath the thorax. -- Pill bug (Zoöl.), any terrestrial isopod of the genus Armadillo, having the habit of rolling itself into a ball when disturbed. Called also pill wood lou…

hich a black liquor distills, supposed to have poisonous qualities. (b) The poison sumac (Rhus venenata). [U. S.] -- Poison dogwood (Bot.), poison sumac. -- Poison fang (Zoöl.), one of the superior maxillary teeth of some species of serpents, which, besides having the cavity for the pulp, is either perforated or groov…

A depilatory made of orpiment and quicklime, and used by the Turks. See Rhusma.

Resembling scirrhus. Dungliston.

Proceeding from scirrhus; of the nature of scirrhus; indurated; knotty; as, scirrhous affections; scirrhous disease. [Written also skirrhous.]

also, any species of the same genus. -- Stag-horn sumac (Bot.), a common American shrub (Rhus typhina) having densely velvety branchlets. See Sumac. -- Stag party, a party consisting of men only. [Slang, U. S.] -- Stag tick (Zoöl.), a parasitic dipterous insect of the family Hippoboscidæ, which lives upon the stag an…

Drawn. [Obs.] Pyrrhus with his streite sword. Chaucer.

Any plant of the genus Rhus, shrubs or small trees with usually compound leaves and clusters of small flowers. Some of the species are used in tanning, some in dyeing, and some in medicine. One, the Japanese Rhus vernicifera, yields the celebrated Japan varnish, or lacquer.

t, or with any instrument; a stab; -- a word much used as a term of fencing. [Polites] Pyrrhus with his lance pursues, And often reaches, and his thrusts renews. Dryden.

bote, quaily, and uplander. -- Upland sumach (Bot.), a North American shrub of the genus Rhus (Rhus glabra), used in tanning and dyeing.