_Asceticism_: The state of an ascetic or hermit, who flies from
society and lives in retirement, or who practices a greater degree of
mortification and austerity than others do, or who inflicts
extraordinary severities upon himself.
_Astral lamp_: A lamp, the principle of which was invented by
Benjamin Thompson, (a native of Massachusetts, and afterward Count
Rumford,) in which the oil is contained in a large horizontal ring,
having at the centre a burner which communicates with the ring by
tubes. The ring is placed a little below the level of the flame, and
from its large surface affords a supply of oil for many hours.
_Astute_: Shrewd.
_Auricles_: (From a Latin word, signifying the ear,) the name given to
two appendages of the heart, from their fancied resemblance to the ear.
_Baglivi, (George)_: An eminent physician, who was born at Ragusa,
in 1668, and was educated at Naples and Paris. Pope Clement XIV., on
the ground of his great merit, appointed him, while a very young man,
Professor of Anatomy and Surgery in the College of Sapienza, at Rome.
He wrote several works, and did much to promote the cause of medical
science.
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