Noun
Any of the fish in the family Stichaeidae.
A stickleback (family Gasterosteidae).
Noun
small elongate fishes of shallow northern seas; a long dorsal fin consists entirely of spines
- Broader terms
small (2-4 inches) pugnacious mostly scaleless spiny-backed fishes of northern fresh and littoral waters having elaborate courtship; subjects of much research
- Synonyms
- Broader terms