Definition of "cyprinodont" []

• Any of various small soft-finned fishes of the family Cyprinodontidae, which includes the killifishes, topminnows, and many species popular in home aquariums. (noun)
• Of, relating to, or belonging to the family Cyprinodontidae. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.