| bat2 |
a small mammal that flies. Bats have small bodies and large wings covered with skin. Most bats eat at night, when they use sound to find and catch flying insects. Bats are found in most parts of the world. There are around one thousand kinds of bats. Their wingspans range from less than two inches to more than five feet. Some kinds of bats live in large colonies that roost in caves or in a section of forest. |
| billion |
the number that is equal to one thousand times one million; 1,000,000,000. [1/4 definitions] |
| comma |
a punctuation mark (,). It is used to separate words, phrases, or other parts of a sentence or list, or to show a pause in speech. It is also used when writing numbers of one thousand or greater to mark off groups of three digits. |
| grand |
(slang) an amount of one thousand dollars. [1/4 definitions] |
| Jupiter |
the largest planet in the solar system and fifth in distance from the sun. Jupiter has sixteen moons and is more than one thousand times larger than Earth. [1/2 definitions] |
| kilo- |
a prefix that means "one thousand." |
| kilogram |
a unit of weight equal to one thousand grams or 2.205 pounds. (abbreviated: kg) |
| kilohertz |
a unit that measures the frequency of radio waves. One kilohertz is equal to one thousand cycles per second. (abbreviated: kHz) |
| kilometer |
a unit of length equal to one thousand meters or 0.621 mile. (abbreviated: km) |
| kilowatt |
a unit of electrical power equal to one thousand watts. (abbreviated: kw, kW) |
| Maldives |
an island country in the Indian Ocean that lies southwest of Sri Lanka. Maldives is made up of about two thousand islands. Its capital is Malé. |
| metric ton |
a unit of weight equal to one thousand kilograms. |
| millennium |
a unit of time equal to one thousand years. |
| million |
the number that is equal to one thousand times one thousand; 1,000,000. [1/5 definitions] |
| saber-toothed tiger |
a large wild cat with very long teeth curving from its upper jaw. Saber-toothed tigers were carnivores that hunted the young of mammoths and other large animals. The last kinds of saber-toothed tigers became extinct over ten thousand years ago. Modern tigers are not related to saber-toothed tigers. |
| thousand |
being one thousand in number. [1/4 definitions] |
| trillion |
the number that is equal to one thousand times one billion; 1,000,000,000,000. [1/4 definitions] |