[bi.re.frin.gence] n [ISV] (1898): the refraction of light in an anisotropic material (as calcite) in two slightly different directions to form two rays -- bi.re.frin.gent adj
BIREFRINGENCE
Meaning of BIREFRINGENCE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012