ephebeum

noun
eph·​e·​be·​um | \ ˌefəˈbēəm\
plural -s

Definition of ephebeum

: a place for gymnastic exercises in ancient Greek palaestrae or Roman thermae specifically : the exercise court for ephebi

History and Etymology for ephebeum

Latin, from Greek ephēbeion, from neuter of ephēbeios youthful, from ephēbos

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