whitsunday(n = noun.time) pentecost - seventh Sunday after Easter; commemorates the emanation of the Holy Spirit to the Apostles; a quarter day in Scotland;
is a kind of quarter day
is a part of whitsun, whitsuntide, whitweek
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. [1913 Webster]
2. See the Note under Term,