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Applied to a gastrula when the blastorope does not entirely up.

The primitive enteron or undifferentiated digestive sac of a gastrula or other embryo. See Illust. under Invagination.

ir both inside and outside of the flame. Argand burner, a burner for an Argand lamp, or a gas burner in which the principle of that lamp is applied.

A compound of arsenic and hydrogen, AsH3, a colorless and exceedingly poisonous gas, having and odor like garlic; arseniureted hydrogen.

ally accompanied by colicky pains and diarrhea, caused by the presence of ascarids in the gastrointestinal canal.

rruption of respiration, as in suffocation or drowning, or the inhalation of irrespirable gases.

A group of Gastropoda, with limpetlike shells, including the abalone shells and keyhole limpets.

An apparatus for passing air or gases through or over certain liquids or solids, or for exhausting a closed vessel, by means of suction.

sound to another. To aspire to an assimilation with God. Dr. H. More. The assimilation of gases and vapors. Sir J. Herschel.

Treatment of disease by vapors or gases, as by inhalation.

The act or process of separating mingled gases of unequal diffusibility by transmission through porous substances.

The whole mass of aëriform fluid surrounding the earth; -- applied also to the gaseous envelope of any celestial orb, or other body; as, the atmosphere of Mars.

e act of attenuating; the act of making thin or less dense, or of rarefying, as fluids or gases.

n angular projection on one or both sides, as in certain bivalve shells, the foot of some gastropods, etc. Auriculate leaf, one having small appended leaves or lobes on each side of its petiole or base.

nd are done by the machine or device itself; as, the automatic feed of a lathe; automatic gas lighting; an automatic engine or switch; an automatic mouse.

A system (devised by Henri Pieper, a Belgian) of driving automobiles employing a gasoline engine and an auxiliary reversible dynamo. When there is an excess of power the dynamo is driven by the engine so as to charge a small storage battery; when there is a deficiency of power the dynamo reverses and acts as an auxilia…

usually propelled by internal combustion engines (using volatile inflammable liquids, as gasoline or petrol, alcohol, naphtha, etc.), steam engines, or electric motors. The power of the driving motor varies from about 4 to 50 H. P. for ordinary vehicles, ranging from the run-about to the touring car, up to as high as…

A singular nocturnal quadruped, allied to the lemurs, found in Madagascar (Cheiromys Madagascariensis), remarkable for its long fingers, sharp nails, and rodent-like incisor teeth.

Pertaining to azote, or nitrogen; formed or consisting of azote; nitric; as, azotic gas; azotic acid. [R.] Carpenter.

A premature explosion in the cylinder of a gas or oil engine during the exhaust or the compression stroke, tending to drive the piston in a direction reverse to that in which it should travel; also, an explosion in the exhaust passages of such ah engine.