nonagesimal Meaning, Definition & Usage

Non`a*ges"i*mal adjective
Etymology
L. nonagesimus the ninetieth. See Nonagenarian.
Definitions
  1. (Astron.) Of or pertaining to the ninetieth degree or to a nonagesimal.
Non`a*ges"i*mal noun
Definitions
  1. (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 1913