meaning of whitsunday
1. The seventh Sunday, and the fiftieth day, after Easter; a festival of the church in commemoration of the descent of the Holy Spirit on the day of Pentecost; Pentecost; -- so called, it is said, because, in the primitive church, those who had been newly baptized appeared at church between Easter and Pentecost in white garments.
2. See the Note under Term, n. , 12.
3. seventh Sunday after Easter; commemorates the emanation of the Holy Spirit to the apostles; a quarter day in Scotland