gambusia[gam byo̵̅o̅′zē ə, -sē ə]
gambusia 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.
☆ any of a genus (Gambusia) of small freshwater livebearers useful in mosquito control, including the mosquitofish
Origin: Modern Latin altered from Cuban Spanish gambusino
gambusia definition by American Heritage Dictionary
Any of various small livebearing fish of the genus Gambusia that feed on mosquito larvae and are often used in mosquito control.
Origin: New Latin Gambusia, genus name, from American Spanish gambusino.