英语词汇“refractional”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

re•frac•tion n. [uncountable]

Optics, Physicsthe change of direction of a ray of light in passing through different substances, as glass or water, at an angle.

re•frac•tive, adj. See -frac-.

re•frac•tion n.

Optics, Physics[Physics.]the change of direction of a ray of light, sound, heat, or the like, in passing obliquely from one medium into another in which its wave velocity is different.
Ophthalmology
- the ability of the eye to refract light that enters it so as to form an image on the retina.
- the determining of the refractive condition of the eye.
Astronomy
- AstronomyAlso called astronomical refraction. the amount, in angular measure, by which the altitude of a celestial body is increased by the refraction of its light in the earth's atmosphere, being zero at the zenith and a maximum at the horizon.
- Astronomythe observed altered location, as seen from the earth, of another planet or the like due to diffraction by the atmosphere.

Late Latin refrāctiōn- (stem of refrāctiō). See refract, -ion
1570–80

re•frac′tion•al, adj.

单词	refractional
释义	WordReference Random House Learner's Dictionary of American English © 2024 re•frac•tion /rɪˈfrækʃən/USA pronunciation n. [uncountable] Optics, Physicsthe change of direction of a ray of light in passing through different substances, as glass or water, at an angle. re•frac•tive, adj. See -frac-. WordReference Random House Unabridged Dictionary of American English © 2024 re•frac•tion (ri frak′shən),USA pronunciation n. Optics, Physics[Physics.]the change of direction of a ray of light, sound, heat, or the like, in passing obliquely from one medium into another in which its wave velocity is different. Ophthalmology the ability of the eye to refract light that enters it so as to form an image on the retina. the determining of the refractive condition of the eye. Astronomy AstronomyAlso called astronomical refraction. the amount, in angular measure, by which the altitude of a celestial body is increased by the refraction of its light in the earth's atmosphere, being zero at the zenith and a maximum at the horizon. Astronomythe observed altered location, as seen from the earth, of another planet or the like due to diffraction by the atmosphere. Late Latin refrāctiōn- (stem of refrāctiō). See refract, -ion 1570–80 re•frac′tion•al, adj.
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