Search Result for "birefringence": 
Wordnet 3.0

NOUN (1)

1. splitting a ray into two parallel rays polarized perpendicularly;
[syn: double refraction, birefringence]



WordNet (r) 3.0 (2006):

birefringence
    n 1: splitting a ray into two parallel rays polarized
         perpendicularly [syn: double refraction, birefringence]