
• (n.) The middle or highest point of the part of the ecliptic which is at any given moment above the horizon. It is the ninetieth degree of the ecliptic, reckoned from the points in which it is intersected by the horizon. • (a.) Of or pertaining to the ninetieth degree or to a nonagesimal. • (a.) Of or pertaining to the ninetieth de...
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http://thinkexist.com/dictionary/meaning/nonagesimal/

<astronomy> Of or pertaining to the ninetieth degree or to a nonagesimal. ... Origin: L. Nonagesimus the ninetieth. See Nonagenarian. ... <astronomy> The middle or highest point of the part of the ecliptic which is at any given moment above the horizon. It is the ninetieth degree of the ecliptic, reckoned from the points in which it is ...
Found on
http://www.encyclo.co.uk/local/20973
Non`a·ges'i·mal adjective [ Latin
nonagesimus the ninetieth. See
Nonagenarian .]
(Astron.) Of or pertaining to the ninetieth degree or to a nonagesimal.
Found on
http://www.encyclo.co.uk/webster/N/29

nonagesimal 1. A reference to the ninetieth degree or to a nonagesimal. 2. The middle or highest point of the part of the ecliptic which is at any given moment above the horizon. It is the ninetieth degree of the ecliptic, reckoned from the points in which it is intersected by the horizon.
Found on
http://www.wordinfo.info/words/index/info/view_unit/1409/
No exact match found.