| n. | 1. | (Astron.) A fixed star, in Medusa's head, in the constellation Perseus, remarkable for its periodic variation in brightness. |
| Noun | 1. | Algol - second brightest star in Perseus; first known eclipsing binary |
| 2. | ALGOL - ALGOrithmic Language; a programming language used to express computer programs as algorithms |
| ALGOL - ALGOL 60 |