| 释义 |
† diˈoptic, a. and n. Obs.
[f. Gr. δι-, δια- through + ὀπτικ-ός of or pertaining to sight or vision, f. root ὀπ- to see.]
A. adj. = dioptric. Also diˈoptical.
1656Blount Glossogr., The Dioptick Art, the Perspective Art, or that part of Astronomy, which by Quadrants and hollow instruments pierces the Heavens, and measures the distance, length, bigness, and breadth of the Cœlestial bodies. 1818Todd, Dioptical, and Dioptick, so the next words [dioptrical, dioptric] are now sometimes written.
B. n.
a. One skilled in dioptrics.
b. (pl.) = dioptrics.
1664Power Exp. Philos. i. 58 If our Diopticks could attain to that curiosity as to grind us such Glasses, as would present the Effluviums of the Magnet. 1665–6Phil. Trans. I. 56 He intends to give the..demonstration in his Diopticks which he is now writing. |