noun
- a small tropical freshwater fish with an elongated tail fin resembling a sword, popular in aquariums
Examples
- The swordtail is one of the most popular fish for beginning aquarium enthusiasts.
- Male swordtails have the characteristic long, pointed tail extension.
- She added three colorful swordtails to her community tank.
- Swordtails are livebearers, meaning they give birth to free-swimming young.
- The pet store had red, orange, and black swordtails available.
- Swordtails are hardy fish that can tolerate a range of water conditions.