Толковый словарь английского языка Oxford English Reference - ascension

n. 1 the act or an instance of ascending. 2 (Ascension) the ascent of Christ into heaven on the fortieth day after the Resurrection. Phrases and idioms Ascension Day the Thursday on which this is celebrated annually. right ascension Astron. longitude measured along the celestial equator. Derivatives ascensional adj. Etymology: ME f. OF f. L ascensio -onis (as ASCEND, -ION)