Illustrated Companion to the Latin Dictionary/Gemellar

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. 

GEMEL'LAR. A particular kind of case for holding oil (Columell. xii. 50. 10.); the characteristic properties of which are conjectured to consist in having two recipients, side by side, instead of a single cavity.