|Libra (ˈliːbrə, ˈlɪbrən)|
|—n , Latin genitive Librae|
|1.||astronomy a small faint zodiacal constellation in the S hemisphere, lying between Virgo and Scorpius on the ecliptic|
|a. the Scales, Also called: the Balance the seventh sign of the zodiac, symbol ♎, having a cardinal air classification and ruled by the planet Venus. The sun is in this sign between about Sept 23 and Oct 22|
|b. a person born under this sign|
|3.||astrology born under or characteristic of Libra|
the basic Roman unit of weight; after 268 BC it was about 5,076 English grains or equal to 0.722 pounds avoirdupois (0.329 kg). This pound was brought to Britain and other provinces where it became the standard for weighing gold and silver and for use in all commercial transactions. The abbreviation lb for pound is derived from libra. One-twelfth of the libra, the Roman uncia, is the ancestor of the English ounce
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