bolt·er(1) (bōl

tər)
n.► A horse given to bolting.
► One who gives up membership in or withdraws support from a political party.
[TahlilGaran] American Dictionary ▲
bolt·er(2) (bōl

tər)
n.► A machine used for sifting, especially for sifting flour.
► One who operates a sifting machine.
[TahlilGaran] American Dictionary ▲