n. pl. weakfish or weak·fish·es
1. A marine food and game fish (Cynoscion regalis) of North American Atlantic waters, having small dark spots on the back. Also called seatrout, squeteague.
2. Any of various other marine fishes of the family Sciaenidae and chiefly of the genus Cynoscion.
[Obsolete Dutch weekvis : week, soft (from Middle Dutch weec; see weik-2 in the Appendix of Indo-European roots) + Dutch vis, fish (from Middle Dutch).]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.