e/Lithobolos

Information
has gloss	eng: Lithobolos (Stone-Throwers) were artillery weapons used in ancient warfare and medieval warfare. These machines threw stones of 10lb to 180lb in weight. They all looked alike and differed only in size: the dimensions being calculated by a complex mathematical formula based on the spring diametre.
lexicalization	eng: Lithobolos
instance of	e/Medieval warfare