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The skull of an animal; especially, that part of the skull, either cartilaginous or bony, which immediately incloses the brain; the brain case or brainpan. See Skull.

A white, crystalline, nitrogenous substance found abundantly in muscle tissue. [Written also kreatine.]

A white, crystalline, nitrogenous body closely related to creatin but more basic in its properties, formed from the latter by the action of acids, and occurring naturally in muscle tissue and in urine. [Written also kretinine.]

m Colorado to California and southward through Mexico. It has yellow flowers and very resinous foliage with a strong odor of creosote.

Pertaining to twilight; glimmering; hence, imperfectly clear or luminous. This semihistorical and crepuscular period. Sir G. C. Lewis.

od work so much depends. South. Critical angle (Optics), that angle of incidence of a luminous ray at which it is wholly reflected, and no portion of it transmitted. The sine of this angle is the reciprocal of the refractive index of the medium. -- Critical philosophy, the metaphysical system of Kant; -- so called fro…

A genus of leguminous plants; rattlebox.

A genus of poisonous serpents, including the rattlesnakes.

ssociated with the development of a false membrane in the air passages (also called membranous croup). See False croup, under False, and Diphtheria.

specially, attended with the formation of a deposit or membrance like that found in membranous croup; as, croupous laryngitis. Croupous pneumonia, pneumonia attended with deposition of fibrinous matter in the air vesicles of the lungs; ordinary acute pneumonia.

Calling for notice; compelling attention; notorious; heinous; as, a crying evil. Too much fondness for meditative retirement is not the crying sin of our modern Christianity. I. Taylor.

A mucilagenous secretion of certain birds found as the characteristic ingredient of edible bird's-nests.

Mineral coal that is not bituminous; anthracite, especially when found in small masses.

A colorless, inflammable, poisonous gas, C2N2, with a peach- blossom odor, so called from its tendency to form blue compounds; obtained by heating ammonium oxalate, mercuric cyanide, etc. It is obtained in combination, forming an alkaline cyanide when nitrogen or a nitrogenous compound is strongly ignited with carbon a…

Pertaining to, or resembling, an order of plants like the palms, but having exogenous wood. The sago palm is an example.

A peculiar mucilaginous substance extracted from the seeds of the quince (Cydonia vulgaris), and regarded as a variety of amylose.

A pouch or sac without opening, usually membranous and containing morbid matter, which is accidentally developed in one of the natural cavaties or in the substance of an organ.

aking varnishes; dammar gum; dammara resin. It is obtained from certain resin trees indigenous to the East Indies, esp. Shorea robusta and the dammar pine. Dammar pine, (Bot.), a tree of the Moluccas (Agathis, or Dammara, orientalis), yielding dammar.

A large tree of the order Coniferæ, indigenous to the East Indies and Australasia; -- called also Agathis. There are several species.

, esp. the Lolium temulentum (bearded darnel), the grains of which have been reputed poisonous. Other species, as Lolium perenne (rye grass or ray grass), and its variety L. Italicum (Italian rye grass), are highly esteemed for pasture and for making hay.