Pan‐the″on (?), n. [L. pantheon, pantheum, Gr. πάνθειον (sc. ιερὄν), fr. πάνθειοσ of all gods; πα̑σ, πα̑ν, all + θέοσ a god: cf. F. panthéon. See Pan-, and Theism.] 1. A temple dedicated to all the gods; especially, the building so called at Rome.
2. The collective gods of a people, or a work treating of them; as, a divinity of the Greek pantheon.