Hy'a-dēş or Hy'ads, n. pl.

n. pl. [Lat. & Fr. Hyades, Gr. Υάδες, i.e., the Rainers, from ὕειν, to rain.] (As-tron.) A cluster of five stars in the face of the constellation Taurus, supposed by the ancients to indicate the approach of rainy weather when they rose with the sun.