(in early Christian legend) seven noble Christian youths of Ephesus who fell asleep in a cave while fleeing from the Decian persecution and awoke 187 years later.
Definition of Seven Sleepers in US English:
Seven Sleepers
proper noun
(in early Christian legend) seven noble Christian youths of Ephesus who fell asleep in a cave while fleeing from persecution by the Roman emperor Decius (c.250 AD) and awoke 187 years later.