A cluster of seven stars in the neck of Taurus, or the Bull, one of the twelve signs of the zodiac. The sun enters Taurus about the middle of April; and the appearance of the Pleiades, therefore, marks the return of spring, Job 9:9; 38:31; Amos 5:8.
These dictionary topics are from American Tract Society Bible Dictionary published in 1859. Public Domain, copy freely.
Rand, W. W. "Entry for 'PLEIADES'". "American Tract Society Bible Dictionary".