The Collaborative International Dictionary
Thong seal
Thong \Thong\, n. [OE. thong, [thorn]wong, thwang, AS. [thorn]wang; akin to Icel. [thorn]vengr a thong, latchet. A strap of leather; especially, one used for fastening anything.
And nails for loosened spears, and thongs for shields,
provide.
--Dryden.
Thong seal (Zo["o]l.), the bearded seal. See the Note under Seal.