Nonagesimal

Nonagesimal

Non`a*ges"i*mal\, a. [L. nonagesimus the ninetieth. See Nonagenarian.] (Astron.) Of or pertaining to the ninetieth degree or to a nonagesimal.
Webster's Revised

Nonagesimal

Non`a*ges"i*mal\, n. (Astron.) 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.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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