Definition of libra
1
capitalized
a
: a southern zodiacal constellation between Virgo and Scorpio represented by a pair of scales
b (1)
: the seventh sign of the zodiac in astrology — see Signs of the Zodiac Table
(2)
: one born under the sign of Libra
2 a
plural librae
play \ˈlī-ˌbrē, ˈlē-ˌbrī\
[L]
: an ancient Roman unit of weight equal to 327.45 grams
b
[Spanish & Portuguese, from Latin]
: any of various Spanish, Portuguese, Colombian, or Venezuelan units of weight 
