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A mountainous and picturesque district of Greece, in the heart of the Peloponnesus, whose people were distinguished for contentment and rural happiness.

An inhabitant of Albania and neighboring mountainous regions, specif. one serving as a soldier in the Turkish army.

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

The process of converting venous blood into arterial blood during its passage through the lungs, oxygen being absorbed and carbonic acid evolved; -- called also aëration and hematosis.

To transform, as the venous blood, into arterial blood by exposure to oxygen in the lungs; to make arterial.

One of the vessels or tubes which carry either venous or arterial blood from the heart. They have tricker and more muscular walls than veins, and are connected with them by capillaries.

Cultivated; not indigenous; not of spontaneous growth; as, artificial grasses. Gibbon. Artificial arguments (Rhet.), arguments invented by the speaker, in distinction from laws, authorities, and the like, which are called inartificial arguments or proofs. Johnson. -- Artificial classification (Science), an arrangement…

A small membranous bladder or tube in which are inclosed the seedlike reproductive particles or sporules of lichens and certain fungi.

A small, hooded, poisonous serpent of Egypt and adjacent countries, whose bite is often fatal. It is the Naja haje. The name is also applied to other poisonous serpents, esp. to Vipera aspis of southern Europe. See Haje.

A white, nitrogenous, crystallizable substance, C4H8N2O3+H2O, found in many plants, and first obtained from asparagus. It is believed to aid in the disposition of nitrogenous matter throughout the plant; -- called also altheine.

Pertaining to, of the nature of, or containing, asphalt; bituminous. "Asphaltic pool." "Asphaltic slime." Milton.

Athermanous.

Extremely heinous; full of enormous wickedness; as, atrocious quilt or deeds.

Enormous wickedness; extreme heinousness or cruelty.

A poisonous, white, crystallizable alkaloid, extracted from the Atropa belladonna, or deadly nightshade, and the Datura Stramonium, or thorn apple. It is remarkable for its power in dilating the pupil of the eye. Called also daturine.

Poisonous; malignant; malicious. [Obs.] Chaucer.

Of or pertaining to augurs or to augury; betokening; ominous; significant; as, an augural staff; augural books. "Portents augural." Cowper.

ts). Aurora borealis (, i. e., northern daybreak; popularly called northern lights. A luminous meteoric phenomenon, visible only at night, and supposed to be of electrical origin. This species of light usually appears in streams, ascending toward the zenith from a dusky line or bank, a few degrees above the northern ho…

An aboriginal or autochthonous condition.

Self-produced; autogenous.