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in almost all plants and appearing on the external surface of many of them in the form of exudations. Am. Cyc.

The resinous and aromatic exudation of certain trees or shrubs. Dryden.

tly red, made in Burgundy, France. Burgundy pitch, a resinous substance prepared from the exudation of the Norway spruce (Abies excelsa) by melting in hot water and straining through cloth. The genuine Burgundy pitch, supposed to have been first prepared in Burgundy, is rare, but there are many imitations. It has a yel…

t, become coated with a false membrane, produced by the solidification of an inflammatory exudation. Cf. Group.

ence of redness and itching, an eruption of small vesicles, and the discharge of a watery exudation, which often dries up, leaving the skin covered with crusts; -- called also tetter, milk crust, and salt rheum.

The escape of a fluid out of its natural vessel, either by rupture of the vessel, or by exudation through its walls. It may pass into the substance of an organ, or issue upon a free surface.

An inodorous exudation, usually in the form of yellow tears, produced chiefly by the African Euphorbia resinifrea. It was formerly employed medicinally, but was found so violent in its effects that its use is nearly abandoned.

Exudation.

Distillation. [Obs.] An exudation or extillation of petrifying juices. Derham.

Having, or partaking of the properties of, fibrin; as, fibrious exudation.

. -- Frog lily (Bot.), the yellow water lily (Nuphar). -- Frog spit (Zoöl.), the frothy exudation of the frog hopper; -- called also frog spittle. See Cuckoo spit, under Cuckoo.

r; as, gum arabic; gum tragacanth; the gum of the cherry tree. Also, with less propriety, exudations that are not soluble in water; as, gum copal and gum sandarac, which are really resins.

A sweetish exudation in the form of pale yellow friable flakes, coming from several trees and shrubs and used in medicine as a gentle laxative, as the secretion of Fraxinus Ornus, and F. rotundifolia, the manna ashes of Southern Europe.

he myrrh of the Bible is supposed to have been partly the gum above named, and partly the exudation of species of Cistus, or rockrose. False myrrh. See the Note under Bdellium.

A white crystalline substance, obtained from an exudation from the olive, and having a bitter-sweet taste and acid proporties. [Written also olivile.] Gregory.

tralis. See Kauri. -- Burgundy pitch. See under Burgundy. -- Canada pitch, the resinous exudation of the hemlock tree (Abies Canadensis); hemlock gum. -- Jew's pitch, bitumen. -- Mineral pitch. See Bitumen and Asphalt. -- Pitch coal (Min.), bituminous coal. -- Pitch peat (Min.), a black homogeneous peat, with a w…

Plastic element (Physiol.), one that bears within the germs of a higher form. -- Plastic exudation (Med.), an exudation thrown out upon a wounded surface and constituting the material of repair by which the process of healing is effected. -- Plastic foods. (Physiol.) See the second Note under Food. -- Plastic force.…

pleura, usually accompanied 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 orang…

tiana) of California and Oregon, furnishing a soft and easily worked timber. The resinous exudation from the stumps, etc., has a sweetish taste, and has been used as a substitute for sugar. -- Sugar squirrel (Zoöl.), an Australian flying phalanger (Belideus sciureus), having a long bushy tail and a large parachute. It…

A semifluid or fluid oleoresin, primarily the exudation of the terebinth, or turpentine, tree (Pistacia Terebinthus), a native of the Mediterranean region. It is also obtained from many coniferous trees, especially species of pine, larch, and fir.