n. 1 a the act or an instance of revealing, esp. the supposed disclosure of knowledge to humankind by a divine or supernatural agency. b knowledge disclosed in this way. 2 a striking disclosure (it was a revelation to me). 3 (Revelation or colloq. Revelations) (in full the Revelation of St John the Divine) the last book of the New Testament, describing visions of heaven. revelational adj.
[ ME f. OF revelation or LL revelatio (as REVEAL(1)) ]