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d with fever, pain, difficult respiration, and cough, and with exudation into the pleural cavity. Pleurisy root. (Bot.) (a) The large tuberous root of a kind of milkweed (Asclepias tuberosa) which is used as a remedy for pleuritic and other diseases. (b) The plant itself, which has deep orange-colored flowers; -- calle…

The pleural and peritoneal membranes, or the membrane lining the body cavity and covering the surface of the inclosed viscera; the peritoneum; -- used especially in the case of those animals in which the body cavity is not divided.

The state of being pneumatic, or of having a cavity or cavities filled with air; as, the pneumaticity of the bones of birds.

A condition in which air or other gas is present in the cavity of the chest; -- called also pneumatothorax.

A cavity in a rock containing a nugget of gold, or other mineral; a small body of ore contained in such a cavity.

ne of the superior maxillary teeth of some species of serpents, which, besides having the cavity for the pulp, is either perforated or grooved by a longitudinal canal, at the lower end of which the duct of the poison gland terminates. See Illust. under Fang. -- Poison gland (Biol.), a gland, in animals or plants, whic…

To examine, as a wound, an ulcer, or some cavity of the body, with a probe.

A lateral cavity of the prosencephalon; a lateral ventricle of the brain. B. G. Wilder.

The entire cavity of the prosencephalon. B. G. Wilder.

An extensive division, or sub-class, of hermaphrodite gastropods, in which the mantle cavity is modified into an air- breathing organ, as in Helix, or land snails, Limax, or garden slugs, and many pond snails, as Limnæa and Planorbis.

consisting essentially of a moving piece or piston working in a hollow cylinder or other cavity, with valves properly placed for admitting or retaining the fluid as it is drawn or driven through them by the action of the piston.

In certain fungi, a flask-shaped cavity from the surface of the inner walls of which spores are produced.

Accumulation of air, or other gas, and of pus, in the pleural cavity.

An intercellular cavity containing oil or resin or other matters.

reversal of the natural direction in which the current or contents flow through a tube or cavity of the body. Quain.

A plane with a hooked tool protruding far below the sole, for smoothing the bottom of a cavity.

A horizontal channel in a mold, through which the metal flows to the cavity formed by the pattern; also, the waste metal left in such a channel.

A cavity, bag, or receptacle, usually containing fluid, and either closed, or opening into another cavity to the exterior; a sack.

a of decapod crustaceans. It serves as a pumping organ to draw the water through the gill cavity.

A place hollowed out; a basinlike cavity; a hollow. Some had lain in the scoop of the rock. J. R. Drake.