…(in double refraction) the light ray that does not obey the ordinary laws of refraction…
…a diplomat sent by one state or monarch on a diplomatic mission to another…
…a meeting of the members or shareholders of a club, company, or other organization, held at short notice, especially in order to consider a particular matter…
…a minister plenipotentiary, ranking below ambassador and above chargé d’affaires…
…(especially in the US) the practice of sending a foreign criminal or terrorist suspect covertly to be interrogated in a country with less rigorous regulations for the humane treatment of prisoners…
