救生弹

Grapple \Grap"ple\, n. [See Grapple, v. t., and cf. Crapple.]
1. A seizing or seizure; close hug in contest; the wrestler's
hold. --Milton.

2.
(a) An instrument, usually with hinged claws, for seizing
and holding fast to an object; a grab.
(b) (Naut.) A grappling iron.

The iron hooks and grapples keen. --Spenser.

{Grapple plant} (Bot.), a South African herb ({Herpagophytum
leptocarpum}) having the woody fruits armed with long
hooked or barbed thorns by which they adhere to cattle,
causing intense annoyance.

{Grapple shot} (Life-saving Service), a projectile, to which
are attached hinged claws to catch in a ship's rigging or
to hold in the ground; -- called also {anchor shot}.