ARTIFICIAL a.
Artificial horizon. See under Horizon. Artificial light, any light other than that which proceeds from the heavenly bodies. -- Artificial lines, lines on a sector or scale, so contrived as to represent the logarithmic sines and tangents, which, by the help of the line of numbers, solve, with tolerable exactness, ques…
AUTUMNAL a.
nal matron. Hawthorne. Autumnal equinox, the time when the sun crosses the equator, as it proceeds southward, or when it passes the ~ point. -- ~= point, the point of the equator intersected by the ecliptic, as the sun proceeds southward; the first point of Libra. -- ~= signs, the signs Libra, Scorpio, and Sagittariu…
DECIMAL a.
tation; a decimal coinage. Decimal arithmetic, the common arithmetic, in which numeration proceeds by tens. -- Decimal fraction, a fraction in which the denominator is some power of 10, as -- Decimal point, a dot or full stop at the left of a decimal fraction. The figures at the left of the point represent units or wh…