CALISTHENIUM
Meaning of CALISTHENIUM in English
ˌ ̷ ̷ ̷ ̷ˈthēnēəm, -en- noun
( -s )
Etymology: calisthen ics + -ium (as in gymnasium)
: a gymnasium for calisthenics
Webster's New International English Dictionary.
Новый международный словарь английского языка Webster.
2012