(American spelling) A sexually transmitted infection caused by Neisseria gonorrhoeae, a species of bacteria (the gonococcus) that affects the mucous membrane of the genital and urinary tracts.

(organic chemistry) A ptomaine found in putrid cheese and other dairy products, producing symptoms similar to cholera infantum.

A triarylmethane dye, the structural core of a variety of other dyes.

A long-tailed American songbird of the Mimidae family, noted for its ability to mimic calls of other birds.