1. Greek Mythology daughters of Atlas, placed in the sky by Zeus: as stars they were thought to be bringers of rain
2. [often with sing. v.]; Astronomy an open cluster of more than 200 stars in the constellation Taurus, whose five brightest members form a V near Aldebaran
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'Hyades'L Hyades < Gr