A surname originating as a patronymic.

(obsolete) Furious; enraged.

(palynology, of a pollen grain) Having an ulcus, a rounded pore-like aperture, at one or both poles.

(UK, informal) A film assigned an age rating of 15, those under 15 not being permitted to view it. / (bibliography, informal) A book printed in the 15th century.