Illustrated Companion to the Latin Dictionary/Conisterium

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

CONISTE'RIUM (κονίστρα). An apartment in the palaestra or gymnasium, the floor of which was covered over with fine sand (κόνις), or in which the bodies of the wrestlers were rubbed over with sand after being anointed. Vitruv. v. 11.