United States Customs Service: Meaning and Definition of

Unit'ed States' Cus'toms Serv"ice

Pronunciation: [key]
— U.S. Govt. U.S. Govt.
  1. the division of the Department of the Treasury that collects customs and enforces laws dealing with smuggling.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.