A sea slug of the former suborder Notaspidea, now split into clades Umbraculida and Pleurobranchomorpha.

(nautical, aviation) one of two or more lights fitted to a ship or aircraft, which indicate position and direction taken, especially important at night. Internationally recognised colours are red o...

(derogatory, vulgar, slang) A very stupid person. / (derogatory, vulgar, slang) A contemptible person.

A surname.