| aquifer |
a layer of rock, sand, or gravel that contains water from which wells and springs are supplied. |
| bed |
a supporting base or layer. [1/5 definitions] |
| bedrock |
the solid layer of rock in the earth's surface, found beneath soil, sand, or gravel. |
| blanket |
a layer of something, such as snow, clouds, or flowers, that covers a thing or area. [2/3 definitions] |
| blubber |
the layer of fat beneath the skin of whales, seals, and other large sea mammals. [1/2 definitions] |
| bran |
the outer layer of wheat and other cereal grains. Bran is left after the grain is ground and the flour or meal is sifted out. |
| canopy |
something high in the air or sky that is spread out over the earth. The top layer of branches and leaves in a rainforest, for example, is called a canopy. [1/2 definitions] |
| clambake |
a picnic or party on the beach at which clams and other foods are cooked. The food is usually baked or steamed on heated rocks covered with a layer of seaweed. |
| coat |
a covering or layer. [2/5 definitions] |
| coating |
a layer that covers the surface of something; coat. |
| crust |
any hard or crisp outer layer. [2/5 definitions] |
| earth |
the outer layer of the planet; ground. [1/4 definitions] |
| film |
a thin layer or coating. [2/5 definitions] |
| gilt1 |
covered with a thin layer of gold or gold paint; gilded. [2/3 definitions] |
| lining1 |
a layer of tissue or other material covering the inside of something. |
| mantle |
the layer of the earth that lies between the crust and the core. The crust is the top layer of the earth--the layer we live on. The core is the center of our earth. The mantle is very thick and makes up most of the entire planet. [1/2 definitions] |
| melon |
a fruit that grows on vines and has a hard outer layer and thick, juicy flesh. |
| membrane |
a thin layer of tissue found in living things. Some kinds of membranes cover the outside or inside of organs. Other membranes separate or connect different parts of the body. |
| millipede |
a small animal that has a narrow body like a worm, with a hard outer layer. The body of the millipede is divided into many segments, and most segments have two pairs of legs. The millipede is a kind of arthropod. |
| ozone hole |
an area in the ozone layer where the ozone becomes thin. There is a large ozone hole over Antarctica and a smaller one over the North Pole. Scientists warn us this is dangerous. |
| ozone layer |
an atmospheric layer between ten and twenty miles above the earth that contains a large amount of ozone, which absorbs certain types of harmful radiation from space. |