Help Wordnik hunt for a million missing words by backing our Kickstarter!


from the GNU version of the Collaborative International Dictionary of English

  • n. An instrument for experiments in polarization, consisting of a rhomb of Iceland spar, which has been bisected obliquely at a certain angle, and the two parts again joined with transparent cement, so that the ordinary image produced by double refraction is thrown out of the field by total reflection from the internal cemented surface, and the extraordinary, or polarized, image alone is transmitted.


Sorry, no etymologies found.


Sorry, no example sentences found.


Log in or sign up to get involved in the conversation. It's quick and easy.