| 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] |
| basalt |
Basalt is a heavy, dark-colored rock made by volcanoes. It is the main type of rock found along the bottom of the ocean. You can see basalt forming when lava flows down a volcano and cools. |
| 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] |
| blade |
The blade is the metal part attached to the bottom of an ice skate. [1/5 definitions] |
| boil1 |
When water in a pot gets very hot and bubbles start to come up from the bottom, we say the water is boiling. When water boils, it changes from a liquid to a gas. If you boil water for a long time, the liquid will disappear because it will change into a gas and go into the air. [1/3 definitions] |
| bolt1 |
A bolt is something used to hold things together strongly. It is a metal screw that is flat on the bottom. A regular screw is pointed at the bottom. A bolt is held in place by another piece of metal called a "nut." A nut has a round hole in it that the bolt goes through. [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 |
the lowest or deepest part of something. [4/6 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] |
| can2 |
A can is a round container made of metal with a flat top and a flat bottom. We often buy food in cans, especially things like soup, beans, corn, and other vegetables. [1/3 definitions] |
| choke up |
to move one's hands up from the bottom end of a baseball bat. [1/2 definitions] |
| clockwise |
When something turns clockwise, it turns in the same direction that the hands of a clock turn. Starting from the top, the hands of a clock move toward the right and down. When they reach the bottom, they move toward the left and up. |
| 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. |