Lewis & Short

ăpŏcŏlŏcyntōsis, is, f., = ἀποκολοκύντωσις, the Metamorphosis into a Pumpkin, the title of an insipid lampoon written by the philosopher Seneca upon Claudius Cæsar. who, acc. to this title, instead of being transformed to a god, is changed to a pumpkin; cf. Bähr, Lit. Gesch. pp. 469 and 470; Teuffel, Rom. Lit. § 284, 7.