Definition that contains volcanic crater
- maar a flat-bottomed volcanic crater that was formed by an explosion; often filled with water
- silversword low-growing plant found only in volcanic craters on Hawaii having rosettes of narrow pointed silver-green leaves and clusters of profuse red-purple flowers on a tall stem
- argyroxiphium sandwicense low-growing plant found only in volcanic craters on Hawaii having rosettes of narrow pointed silver-green leaves and clusters of profuse red-purple flowers on a tall stem