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[lee-bruh, lahy-] /ˈli brə, ˈlaɪ-/
noun, genitive Librae
[lee-brahy, lahy-bree] /ˈli braɪ, ˈlaɪ bri/ (Show IPA),
for 1.
Astronomy. the Balance, a zodiacal constellation between Virgo and Serpens.
  1. the seventh sign of the zodiac: the cardinal air sign.
  2. Also, Libran. a person born under this sign, usually between September 23rd and October 22nd.
1350-1400; Middle English < Latin lībra literally, pair of scales, libra1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for libran


noun (pl) -brae (-briː)
an ancient Roman unit of weight corresponding to 1 pound, but equal to about 12 ounces
Word Origin
C14: from Latin, literally: scales


noun (Latin genitive) Librae (ˈliːbriː)
(astronomy) a small faint zodiacal constellation in the S hemisphere, lying between Virgo and Scorpius on the ecliptic
  1. Also called the Scales, 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
  2. a person born under this sign
(astrology) born under or characteristic of Libra
Also (for senses 2b, 3) Libran (ˈlɪbrən)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for libran



zodiac constellation, late Old English, from Latin libra, literally "pound, balance," from Mediterranean base *lithra- "a scale." Nativized in Old Norse as skala-merki.

Online Etymology Dictionary, © 2010 Douglas Harper
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libran in Science
A constellation in the Southern Hemisphere near Scorpius and Virgo. Libra (the Scales or Balance) is the seventh sign of the zodiac.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for libran


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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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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