请输入您要查询的英文单词:

 

单词 θ16305
释义
the world > health and disease > healing > ophthalmology or optometry > aids to defective vision > [noun] > spectacles > lens of spectacles > types of (5)
pebble1688

A variety of colourless transparent rock crystal (quartz), formerly used instead of glass in spectacles; a lens made of this. Cf. compounds 1b. Obs

distance lens1907

As a modifier, designating lenses used to correct myopia, or spectacles with such lenses, as in distance glasses, distance lens, distance spectacles

omnifocal1962

(a) adj. designating a lens whose power changes continuously from top to bottom (cf. varifocal, adj. b); (b) n. an omnifocal lens.

toric1962

Of or pertaining to a torus (see torus, n. 4); having the form of a torus or a portion of one; spec. in Ophthalmology, applied to a lens with one…

varifocal1975

Ophthalmology. = omnifocal adj. n. at omni-, comb._form affix. Also elliptical.

随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/3/21 15:17:39