Illustrated Companion to the Latin Dictionary/Teruncius

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. 

TERUN'CIUS, sc. nummus. The last and smallest division of the denarius, or silver coinage of the Romans, containing three-twelfths (unciae), or one-fourth of the as, and thus equal in value to the copper quadrans. It seems incredible that so small an amount should ever have been coined in silver, though it is enumerated amongst the silver pieces. Varro, L. L. v. 174.