ˈramə(r) noun
( -s )
Etymology: Middle English, from rammen to ram + -er — more at ram
: one that rams: as
a. : an instrument for driving something (as stones, piles, earth) with force
b. : a rod made chiefly of wood and operated by hand or entirely of metal and operated by power that is used for ramming home the projectile or the charge of a gun
c. : a worker who compacts sand around mold patterns