[Pen.te.cos.tal] adj (1663) 1: of, relating to, or suggesting Pentecost
2: of, relating to, or constituting any of various Christian religious bodies that emphasize individual experiences of grace, spiritual gifts (as glossolalia and faith healing), expressive worship, and evangelism -- Pen.te.cos.tal.ism n -- Pen.te.cos.tal.ist n or adj
[2]Pentecostal n (1904): a member of a Pentecostal religious body