Chancellor of the Exchequer

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The senior finance minister in the British government and a member of the prime minister's cabinet.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• proper noun The official title held by the British cabinet minister, who is responsible for all governmental economic and financial matters, including the treasury.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the British cabinet minister responsible for finance