or balance, one of the mechanical powers. See Balance.

astronomy, one of the 12 signs of the zodiac, and exactly opposite to Aries; so called because when the sun is in this sign at the autumnal equinox, the days and nights are equal as if weighed in a balance.—The stars in this constellation according to Ptolemy are 17, Tycho 10, Hevelius 29, and Flamsteed 51.