1. Small elongate fishes of shallow northern seas; a long dorsal fin consists entirely of spines 
2. Small (2-4 inches) pugnacious mostly scaleless spiny-backed fishes of northern fresh and littoral waters having elaborate courtship; subjects of much research
   - stickleback

Derived forms: pricklebacks

Type of: acanthopterygian, blennioid, blennioid fish, spiny-finned fish

Part of: family Gasterosteidae, Gasterosteidae

Encyclopedia: Prickleback

• Greater Antilles
• greater burdock
• greater butterfly orchid
• greater celandine
• greater knapweed
• greater kudu
• Greater London
• greater masterwort
• Greater New Orleans Bridge
• Greater New York
• greater omentum
• greater pectoral muscle
• greater peritoneal sac
• greater pichiciego
• greater prairie chicken
• greater rhomboid muscle
• greater scaup
• greater spearwort
• greater stitchwort
• Greater Sunda Islands
• Greater Swiss Mountain dog
• greater water parsnip
• greater whitethroat
• greater yellowlegs
• greatest