Function: noun
Date: 1664
: a line in a doubly refracting medium that is parallel to the direction in which all components of plane-polarized light travel with the same speed
Function: noun
Date: 1664
: a line in a doubly refracting medium that is parallel to the direction in which all components of plane-polarized light travel with the same speed
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012