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(astronomy) A binary star in the constellation Virgo; alpha (α) Virginis. quotations examples
The constellation Virgo is a Y-shaped group, of which α, the star at the foot, is the well-known Spica, a star of the first magnitude.
1920, Edward Carpenter, Pagan and Christian Creeds, New York: Harcourt, Brace and Co., published 1921