refractive
/ri'frækʃənl/ Cách viết khác : (refractive) /ri'fræktiv/
Definition
- Adjective:
- Capable of changing the direction (of a light or sound wave): Describes a property of a material or medium that causes waves, such as light or sound, to bend when they pass through it at an angle.
- Of or relating to or capable of refraction: Pertaining to the physical phenomenon of refraction itself.
Examples of Usage
- Adjective:
- Water is a refractive medium, which is why a straw looks bent in a glass.
- The refractive properties of the lens are crucial for focusing light onto the retina.
- Scientists study the refractive index of various materials for optical applications.
Advanced Usage
- "Refractive error": A common term in optometry and ophthalmology referring to a vision problem, such as nearsightedness or farsightedness, caused by the eye's inability to focus light correctly on the retina.
- Glasses or contact lenses are used to correct a refractive error.
Variants and Related Words
- Refract (verb): To cause light or other waves to change direction when passing through a substance.
- A prism refracts white light, separating it into colors.
- Refraction (noun): The process or phenomenon of a wave changing direction.
- The bending of light in a raindrop is due to refraction.
- Refractivity (noun): The physical property of being refractive; refractive power.
- Refractor (noun): A lens or other device that causes refraction, such as in a telescope.
Synonyms
- Deflective: Causing something to change direction.
- Diffractive: Causing waves to spread out, often used alongside refractive in wave physics.
Related Phrases
- Refractive index (noun phrase): A dimensionless number that describes how fast light travels through a material compared to a vacuum. It quantifies the refractive power.
- Diamond has a very high refractive index, which contributes to its brilliance.
- Refractive surgery (noun phrase): A type of eye surgery, such as LASIK, that aims to correct refractive errors.
- He underwent refractive surgery to eliminate his need for glasses.
Adjective
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capable of changing the direction (of a light or sound wave)
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of or relating to or capable of refraction
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the refractive characteristics of the eye
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