Illustrated Companion to the Latin Dictionary/Cellularius

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. 

CELLULA'RIUS. A monk or friar, so called from the small conventual cells in which the religious orders dwelt. Sidon. Epist. ix. 9.