the surface to which all light rays emanating from a single point and reflected by a curved surface, as a concave mirror, are tangent.
After the tragic Arizona shooting, the word “vitriol” was everywhere in the news. What is its literally dangerous meaning?After Saturday’s shocking attack on Arizona lawmaker Gabrielle Giffords and a crowd of bystanders, an unusual word proliferated through all forms of media. Shortly after the shooting tragedy, Pima County Sheriff Clarence Dupnik cited “vitriolic rhetoric” as a potential source for the violence. This article is not about politics or the relationship of media and violence in American culture. The topic at hand, of course, …
hypocorismRead more in this article about some frequently asked questions and fun facts related to our definitions.
- caustic baryta,
- caustic curve,
- caustic lime,
- caustic potash,
- caustic soda,
Origin of caustic surface
First recorded in 1865–70
Also called caustic.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019