Optical brightener
noun
a chemical substance added to detergents to produce a whitening or brightening effect in fabric or paper
Examples
Optical brighteners are dyes that absorb light in the ultraviolet and violet region of the electromagnetic spectrum, and re-emit light in the blue region.
Read Also:
- Optical carrier 12
networking (OC-12) A SONET rate of 12 * 51.84 = 622.08 megabits per second. [Matches STS-12]? (1997-05-26)
- Optical carrier 3
networking (OC-3) A SONET rate of 3 * 51.84 = 155.52 megabits per second, which matches STS-3. (1997-02-05)
- Optical carrier 48
networking (OC-48) A SONET rate of 48 * 51.84 = 2488.32 megabits per second. [Matches STS-48]? (1997-05-26)
- Optical carrier n
networking (OC-n) A SONET rate of n times 51.84 megabits per second. (1997-02-05)
- Optical-center
noun, Printing. 1. a point about ten percent above the exact center of a printed page or layout.