1. Any of several large marine fishes of the genus Seriola having a yellowish tail, especially S. lalandi of subtropical waters worldwide, which is a popular game fish in coastal waters of southern California and Mexico.
2. Any of several other fishes having a yellowish tail, such as the yellowtail flounder (Limanda ferruginea), the yellowtail snapper (Ocyurus chrysurus), and the North American silver perch.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.