| abyss |
a vast pit, too deep to be measured. |
| barge |
a large, long boat with a flat bottom used for carrying freight. |
| barnacle |
a small sea animal that attaches its shell to rocks, the bottom of ships, docks, and other objects in shallow parts of the ocean. Barnacles float freely in the ocean when they are young. They develop shells with sharp edges as adults. Barnacles are kinds of crustaceans. |
| barrel |
a round container with a flat top and bottom and bulging sides, often made of wood boards and metal hoops. [1/4 definitions] |
| base1 |
the bottom part of something. [1/7 definitions] |
| beaker |
an open glass container with a flat bottom and a pouring spout. Beakers are used by chemists and other scientists. |
| bed |
the bottom of a body of water. [1/5 definitions] |
| boom2 |
a long pole that stretches the bottom of a boat's sail and holds it in place. [1/2 definitions] |
| bottom |
of or having to do with the bottom. [1/6 definitions] |
| box1 |
a container made of stiff material that usually has four rectangular sides, a bottom, and a lid. [1/5 definitions] |
| bucket |
an open container with round sides, a flat bottom, and a curved handle attached to the top; pail. |
| Bunsen burner |
a burner that has holes at the bottom where air enters, mixes with gas, and makes a hot blue flame. Bunsen burners are used in laboratory experiments. |
| buoy |
a float attached by line to the bottom of a body of water to mark a location. [1/3 definitions] |
| choke up |
to move one's hands up from the bottom end of a baseball bat. [1/2 definitions] |
| colander |
a bowl-shaped container with many holes in the bottom, used especially for washing fruits and vegetables and also for draining the water away from spaghetti or other pasta. A colander usually has very small legs on the bottom, and it often has a handle or handles. |
| coral reef |
a structure that rises up from the bottom of the sea and is made up of the hard skeletons of tiny sea animals called corals. Coral reefs are found in warm, shallow sea waters around the world. The largest system of coral reefs is found in the Coral Sea off the northeastern coast of Australia. |
| cumulus |
a large, fluffy, white cloud with a flat bottom. |
| cuticle |
the tough, dead skin along the bottom edge and sides of the fingernails and toenails. |
| depth |
the distance from top to bottom or from front to back. [1/2 definitions] |
| diamond |
a figure with four straight, equal sides and four angles, where one of the points is at the bottom of the figure. [1/5 definitions] |
| dory1 |
a small, narrow boat with a flat bottom, high sides, and a sharply pointed bow. |