[fleg-uh-thon, flej-] 
| 1. | Also called Pyriphlegethon. Classical Mythology. a river of fire, one of five rivers surrounding Hades. |
| 2. | (often lowercase ) a stream of fire or fiery light. |
| Phleg·e·thon (flěg'ə-thŏn') n. Greek Mythology A river of fire, one of the five rivers of Hades. [Middle English Flegeton, from Latin Phlegethōn, from Greek, from present participle of phlegethein, to blaze, variant of phlegein; see bhel-1 in Indo-European roots.] |