(organic chemistry) A polycyclic aromatic hydrocarbon consisting of a benzene ring attached to each of the rings of a naphthalene molecule; it is carcinogenic, and is a product of incomplete combus...

A male given name from Ancient Greek of mostly historical use, and a transliteration from modern Greek. / Pythagoras (c. 570 – c. 495 BC), an Ancient Greek mathematician and philosopher.

(rare) An entrant, especially one who enters on some public duty.

In a perverse manner.