Relating to ascension; connected with ascent; ascensive; tending upward; as, the ascensional power of a balloon. ... <astronomy> Ascensional difference, the difference between oblique and right ascension; used chiefly as expressing the difference between the time of the rising or setting of a body and six o'clock, or six hours from its meridi... Found on http://www.encyclo.co.uk/local/20973
As·cen'sion·al adjective Relating to ascension; connected with ascent; ascensive; tending upward; as, the ascensional power of a balloon. Ascensional difference (Astron.) , the difference between oblique and right ascension; -- used chiefly as expressing the difference betwe... Found on http://www.encyclo.co.uk/webster/A/127