The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
noun pl. jewelfish or jew·el·fish·es
A small, brilliantly colored freshwater fish (Hemichromis bimaculatus) of tropical Africa, popular in home aquariums.