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Meaning of sphaeristerium

sphae•ris•te•ri•um

Pronunciation: (sfēr"u-stēr'ē-um), [key]
— pl. sphae•ris•te•ri•a
  1. an ancient Roman handball court.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.