supercargo definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
supercargo definition by American Heritage Dictionary
noun pl. su·per·car·goes or su·per·car·gos
An officer on a merchant ship who has charge of the cargo and its sale and purchase.
Origin: Alteration (influenced by super-) of supracargo, alteration (influenced by supra-) of Spanish sobrecargo : sobre-, over (from Latin super-; see super-) + cargo, cargo; see cargo.