ARCTIC a.
Pertaining to, or situated under, the northern constellation called the Bear; northern; frigid; as, the arctic pole, circle, region, ocean; an arctic expedition, night, temperature.
AUGUSTINIAN a.
Of or pertaining to St. Augustine, bishop of Hippo in Northern Africa (b. 354 -- d. 430), or to his doctrines. Augustinian canons, an order of monks once popular in England and Ireland; -- called also regular canons of St. Austin, and black canons. -- Augustinian hermits or Austin friars, an order of friars establishe…
AURORA n.
The aurora borealis or aurora australis (northern or southern lights). 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 zen…
AUTUMN n.
ason between summer and winter, often called "the fall." Astronomically, it begins in the northern temperate zone at the autumnal equinox, about September 23, and ends at the winter solstice, about December 23; but in popular language, autumn, in America, comprises September, October, and November.