follow Dictionary.com

What is the X in X-mas?

anomalous dispersion

noun, Physics.
1.
a sudden change in the refractive index of a material for wavelengths in the vicinity of absorption bands in the spectrum of the material.
Origin
1880-1885
1880-85
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source

Word of the Day

Difficulty index for anomalous dispersion

Few English speakers likely know this word

Word Value for anomalous

11
15
Scrabble Words With Friends

Nearby words for anomalous dispersion