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ous substance, consisting of a hydrous basic carbonate of magnesium, and used as a mild cathartic.

btained as a yellow amorphous powder, the fused and crystalline form of which is called litharge; lead ocher. It is used as a pigment.

A kind of cement composed of burnt clay, litharge, and linseed oil, used for plastering walls, etc. Barbary mastic (Bot.), the Pistachia Atlantica. -- Peruvian mastic tree (Bot.), a small tree (Schinus Molle) with peppery red berries; -- called also pepper tree. -- West Indian mastic (Bot.), a lofty tree (Bursera gum…

having short oval elytra; the oil beetles. These beetles are sometimes used instead of cantharides for raising blisters. See Oil beetle, under Oil.

and water mixed so as to be soft and adhesive. Mud bass (Zoöl.), a fresh-water fish (Acantharchum pomotis) of the Eastern United States. It produces a deep grunting note. -- Mud bath, an immersion of the body, or some part of it, in mud charged with medicinal agents, as a remedy for disease. -- Mud boat, a large fla…

A medicinal preparation spread upon paper, intended for external application; as, cantharides paper.

Specifically, a medicine that purges; a cathartic.

Of or pertaining to physic, or the art of medicine; medicinal; curative; healing; also, cathartic; purgative. [Obs.] "Physical herbs." Sir T. North. Is Brutus sick and is it physical To walk unbraced, and suck up the humors Of the dank morning Shak. Physical astronomy, that part of astronomy which treats of the causes…

The powder of aloes with canella, formerly officinal, employed as a cathartic.

The rhizome and rootlet of the May apple (Podophyllum peltatum), -- used as a cathartic drug.

an object, and attracting attention to it; -- with at. Now must the world point at poor Katharine. Shak. Point at the tattered coat and ragged shoe. Dryden.

ploy previously. [Obs.] The premised flames of the last day. Shak. If venesection and a cathartic be premised. E. Darwin.

usually be separated by analysis; -- applied especially to drugs, plant extracts, etc. Cathartine is the bitter, purgative principle of senna. Gregory. Bitter principle, Principle of contradiction, etc. See under Bitter, Contradiction, etc.

A cathartic; a purgative. [Obs.] Bacon.

Having the power or quality of purging; cathartic. -- n. (Med.)

To operate on as, or by means of, a cathartic medicine, or in a similar manner.

One who, or that which, purges or cleanses; especially, a cathartic medicine.

purges; cleansing. Purging flax (Bot.), an annual European plant of the genus Linum (L. catharticum); dwarf wild flax; -- so called from its use as a cathartic medicine.

A prolongation or increase of any sound, eithar by reflection, as in a cavern or apartment the walls of which are not distant enough to return a distinct echo, or by the production of vibrations in other bodies, as a sounding-board, or the bodies of musical instruments. Pulmonary resonance (Med.), the sound heard on pe…

hrubs and small trees; buckthorn. The California Rhamnus Purchianus and the European R. catharticus are used in medicine. The latter is used for hedges.