refractivity
- noun
- /ˌrɛfrækˈtɪvɪti/
- Specialized
- The scientist measured the refractivity of the new material to determine its optical properties.
- refractivity index
Examples
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Still, it went way beyond that in the anticlimactic refractivity, the visionary hiccup we fostered and factored in.
Fiction book (1997) -
In physics class, we learned that the refractivity of glass is higher than that of air.
-
The refractivity index of the solution was calculated to understand how it would bend light.
Synonyms
A number that shows how much a material slows light compared with empty space
A number showing how much light slows in a material compared to empty space
The amount a material bends light when the light passes through it, like water or glass
Surface Forms
Morphology
refractivity = refractive (semi-transparent) = refract + ive + ity
Formed by adding the productive noun-forming suffix '-ity' to the adjective 'refractive', yielding the quality or degree related to refraction.
Etymology
Refractivity comes from refract + -ivity, and refract comes from a root that means 'break', as in common words like fraction and fracture, so you can imagine light being slightly 'broken' or 'bent' when it passes into a new material. That's why refractivity measures how much a material bends light.