Dictionary
Pen•te•cost
Pronunciation: (pen'ti-kôst", -kost"), [key]—
n.
1. a Christian festival celebrated on the seventh Sunday after Easter, commemorating the descent of the Holy Ghost upon the apostles; Whitsunday.
2. Shavuoth.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.