refraction
UK/ri'frækʃәn/US
TOEFLGREC1
Definitions
n.
The bending of light, sound, or other waves as they pass from one medium into another.
折射（光、声等波从一种介质进入另一种介质时的弯折）。
Root Breakdown
Root-derivedre- (back) + fract (break) + -ion = 'a breaking back.' When light passes from air into water it appears to bend — a straw in a glass looks snapped at the surface. The ray seems 'broken back,' so the bone-snapping root became the physics term for bending waves.
Root fract still carries 13 more wordsCommon Collocations
- 1.light refraction光的折射
- 2.angle of refraction折射角
- 3.index of refraction折射率
- 4.double refraction双折射
Example Sentences
- 1.
Refraction makes the pencil in the glass look bent.
- 2.
A rainbow forms through the refraction of sunlight in raindrops.
- 3.
The lens relies on refraction to focus the image.