Illustrated Companion to the Latin Dictionary/Fundibalus

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. 

FUNDIB'ALUS and FUNDIB'ALUM. A military engine for discharging stones, belonging to the class of Ballistae; but the distinctive characteristics are unknown, further than, as the name implies, that its action was that of a sling.