“ortive”的英文意思_释义_用法

单词

ortive

释义

† ˈortive, a. Obs.
[ad. L. ortīv-us pertaining to rising, f. ortus rising, rise. So F. ortive (1558 in Hatz.-Darm., 1762 in Dict. Acad.).]
1. Astron. Rising; pertaining to the rising of a heavenly body.
1635Gellibrand Variation Magn. Needle 5 It may likewise be performed by the Amplitude Ortive or Occiduall of the Sunne.1669Sturmy Mariners Mag. vii. 45 The Suns Azimuth when he riseth, commonly called Ortiue Latitude.1727–38Chambers s.v., Ortive or eastern amplitude, is an arch of the horizon intercepted between the point where a star rises, and the east point of the horizon, where the horizon and equator intersect.
2. Arith. numeration ortive: that part of arithmetic which deals with multiplication, division, involution, and evolution; as arising or derived from numeration original, i.e. numeration (in the mod. sense), addition, and subtraction.
1674S. Jeake Arith. i. i. iii. (1701) 13 Numeration Ortive, ariseth from the former Species of Numeration Original, and consisteth in two things, Reduction, and Figuration.

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