Illustrated Companion to the Latin Dictionary/Ballistarius

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. 

BALLISTA'RIUS or BALIST. A soldier who worked or discharged a ballista; ranked amongst the light-armed troops. Ammian. 16. 2. § 5. Veget. Mil. ii. 2.