marathon: Meaning and Definition of

mar•a•thon

1. a foot race over a course measuring 26 mi. 385 yd. (42 km 195 m).
2. any long-distance race.
3. any contest, event, or the like, of great, or greater than normal, length or duration or requiring exceptional endurance: a dance marathon; a sales marathon.

Mar•a•thon

1. a plain in SE Greece, in Attica: the Athenians defeated the Persians here 490b.c.
2. an ancient village that is near this plain.
3. a son of Epopeus and the father of Corinthus.