polarimeter
Concise Oxford English Dictionary © 2008 Oxford University Press:
polarimeter /ˌpəʊləˈrɪmɪtə/
▶noun an instrument for measuring the polarization of light, especially to determine the optical activity of a substance.
– derivatives
polarimetric adjective,
polarimetry noun.
polarimetric adjective,
polarimetry noun.
'polarimeter' also found in these Oxford entries:

