vergence
[地质]趋异
发音
词形变化
释义与例句
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1.
The simultaneous turning of both eyes when focusing.
可数 不可数 医学 -
2.
A measure of convergence or divergence of rays.
可数 不可数 工程 物理1947 Benjamin King Johnson, Optics and Optical Instruments: An Introduction with Special Reference to Practical Applications, Courier Corporation (1960 [1947]), p. 152. "Ample movement between the source and condenser should be available in order to allow for a variation in the vergence of the light leaving the condenser"
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3.
The direction of the overturned component of an asymmetric fold.
可数 不可数 地质
词源
From verge (“tend, incline”, from Latin vergere) + -ence, synonym of earlier (1660s) vergency (the equivalent of French vergence). Coined as a technical term in ophthalmology, as a hypernym of convergence and divergence, in 1902. The sense of the numeric quantity in geometric optics was introduced, from use of the term in physiological optics, in the 1920s.
来源：wiktionary