traveler's check

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. An internationally redeemable draft purchased in various denominations from a bank or traveler's aid company and payable only upon the purchaser's endorsement against the original signature on the draft.

Wiktionary

1. n. US A check (draft), requiring a specimen signature and a countersignature; this is usually prepaid and drawn against the bank's own funds, rather than drawn against the signatory's account.

WordNet 3.0

1. n. a letter of credit issued by a bank or express company that is payable on presentation to any correspondent of the issuer