Definitions:

1. A large silverside of the Pacific coast of North America that is the chief commercial smelt of the California markets. NOUN
   • The jacksmelt is a common catch for anglers fishing off the piers along the California coast.
2. A species of marine fish, commonly found in the coastal waters of the eastern Pacific Ocean particularly along the coast of California, characterized by its elongated body, silvery appearance, and sharp, pointed snout. NOUN
   • Fishermen along the California coast often catch jacksmelt in shallow waters.

Synonyms:

• blue smelt
• california smelt
• horse smelt