Pronunciation: (plē'u-dēz", plī'-), [key]
1. Class. Myth.seven daughters of Atlas and half sisters of the Hyades, placed among the stars to save them from the pursuit of Orion. One of them (the Lost Pleiad ) hides, either from grief or shame.
2. Astron.a conspicuous group or cluster of stars in the constellation Taurus, commonly spoken of as seven, though only six are visible.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.