bi·re·frin·gence 
(bī′rĭ-frĭnjəns)
(bī′rĭ-frĭnjəns)n.
The resolution or splitting of a light wave into two unequally reflected or transmitted waves by an optically anisotropic medium such as calcite or quartz. Also called double refraction.
bi′re·fringent adj.
- triphthongal
- tripinnate
- tripinnately
- triplane
- triple
- triple agent
- triple alpha process
- triple bond
- Triple Crown
- triple-decker
- triple-digit
- triple digits
- triple-double
- triple figure
- triple-header
- tripleheader
- triple jump
- triple measure
- triple play
- triple point
- triple rhyme
- triple sec
- triplet
- tripletail
- triple time