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Any of several small, brilliantly colored cichlids of the genus Hemichromis of tropical Africa that are popular in home aquariums, especially H. letourneuxi. Also called jewelfish.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.