(pathology) A disease caused by infection by a bacterium of the genus Yersinia, especially Yersinia enterocolitica.

(slang, dated) Marijuana / (archaic, UK, slang) A pint pot. / (archaic, UK, slang, metonymically) A drink. / (archaic, UK, slang) A tobacco pipe. / (archaic, UK, slang) A chamberpot.

(mathematics, stochastic processes) the quality of being positive recurrent.

(organic chemistry) Any organic cuprate