preventer
nounOne who goes before or takes the lead.
nounOne who prevents; a hinderer; that which hinders; a preventive.
nounSpecifically Nautical, an additional rope, chain, bolt, or spar employed to support any other when the latter suffers an unusual strain.
nounOne who goes before; one who forestalls or anticipates another.
nounOne who prevents or obstructs; a hinderer; that which hinders.
nounAn auxiliary rope to strengthen a mast.
nounfixtures connected with preventers to reënforce other rigging.
nounSame as
One who, or that which, prevents.
