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caustic surface
noun
Optics.
- the surface to which all light rays emanating from a single point and reflected by a curved surface, as a concave mirror, are tangent.
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51Թ History and Origins
Origin of caustic surface1
First recorded in 1865–70
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Example Sentences
Examples have not been reviewed.
The word she’s looking for is misanthrope, but of course there is a core of tenderness and generosity underneath Elle’s caustic surface.
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