THE FULL ARTICLE — from the International Standard Bible Encyclopedia

The International Standard Bible Encyclopedia (1915), general editor James Orr — public domain, printed whole.

a-per'-ing (apokalupsis, "an unveiling"; epiphaneia, "a manifestation"): Exclusively technical, referring in the six passages where found to the return, the millennial advent of Christ (e.g. 1Pe 1:7, the King James Version; 2Ti 1:10; Tit 2:13).