ultraviolet

Definition

Of electromagnetic radiation beyond (higher in frequency than) light visible to the human eye; radiation with wavelengths from 380 to 10 nanometres.

Etymology

Etymology tree Proto-Indo-European *h₂el- Latin ūls Proto-Indo-European *-teros? Latin -ter Old Latin -ād Latin -ā Latin ultrālbor. English ultra- Latin viola Old French -ette Old French violettebor. Middle English violet English violet English ultraviolet From ultra- (“beyond”) + violet (“violet”).

Example Sentences

• "Micron said in a statement that it would bring extreme ultraviolet (EUV) technology to Japan, becoming the first semiconductor company to do so, and expected to invest up to 500 billion yen ($3.6 billion) with support from the Japanese government."
• "A one-loop Feynman graph that represents a virtual process. In the limit in which the virtual process involves short distances or high momenta, one may find an ultraviolet divergence in the corresponding amplitude."
• "Some have advocated the search for a new theory of quantum gravity, a theory which does not suffer from ultraviolet infinity problems."