noun
- small freshwater and marine fish with sharp spines on their backs
Examples
- The pond was full of tiny sticklebacks darting between the weeds.
- Three-spined sticklebacks are common in European waters.
- The children caught several sticklebacks in their fishing net.
- Sticklebacks build elaborate nests during breeding season.
- The aquarium displayed various species of sticklebacks.
- Male sticklebacks develop bright colors when ready to mate.