Definition that contains bottoms
- plains spadefoot this spadefoot toad lives in plains and hills and river bottoms in areas of low rainfall east of the Rocky Mountains
- river birch birch of swamps and river bottoms throughout the eastern United States having reddish-brown bark
- betula nigra birch of swamps and river bottoms throughout the eastern United States having reddish-brown bark
- southern cypress common cypress of southeastern United States having trunk expanded at base; found in coastal swamps and flooding river bottoms
- gooseneck barnacle stalked barnacle that attaches to ship bottoms or floating timbers
- comatulid free-swimming stalkless crinoid with ten feathery arms; found on muddy sea bottoms
- pond bald cypress common cypress of southeastern United States having trunk expanded at base; found in coastal swamps and flooding river bottoms
- router plane a woodworking plane with a narrow cutting head that will make grooves with smooth bottoms
- black birch birch of swamps and river bottoms throughout the eastern United States having reddish-brown bark
- swamp cypress common cypress of southeastern United States having trunk expanded at base; found in coastal swamps and flooding river bottoms