polybolos
polybolos is a torsion siege engine or weapon family.
In detail
polybolos is a torsion siege engine or weapon family.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Polybolos”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q734956: polybolos
Consult the source