| asteroid |
a small, rocky, planet-like body that circles the sun and is mostly found between the orbits of Jupiter and Mars. The size of an asteroid can vary from very tiny to six hundred miles across. |
| Celsius |
relating to a temperature scale on which water freezes at zero degrees and boils at one hundred degrees; centigrade. (abbreviated: C) |
| centi- |
a prefix that means "one hundred." [1/2 definitions] |
| century |
a unit of time equal to one hundred years. [2 definitions] |
| dinosaur |
one of a group of extinct animals. Some kinds of dinosaurs were the largest animals that ever lived on land. Other dinosaurs were as small as chickens. The first kinds of dinosaurs developed over two hundred million years ago. The last kinds became extinct about sixty-five million years ago. |
| dollar |
the main unit of money in the United States, Canada, and several other countries. One dollar is equal to one hundred cents. [2 definitions] |
| gorilla |
a very large ape that lives in African forests. Gorillas are the largest of the primates. Male gorillas living in zoos can weigh as much as six hundred pounds. All gorillas living in the wild are in danger of extinction. |
| hundred |
being one hundred in number. [1/4 definitions] |
| hundredth |
one of one hundred equal parts of a whole; 0.01 or 1/100. [1/3 definitions] |
| meter1 |
the basic unit of length of the metric system, equal to one hundred centimeters or 3.28 feet. |
| musket |
a heavy gun with a long barrel. Muskets were carried on the shoulder. They were used over three hundred years ago, before rifles were invented. |
| number |
a unit in math with a fixed value that is used in counting or to tell the position of something in a series. "Four," "four tenths," and "four hundred" are all ways of saying numbers. Numbers can also be represented by numerals, such as 4, 0.4, and 400. [1/11 definitions] |
| percent |
one part or unit of each hundred. |
| percentage |
some part of a whole based on a total of one hundred parts. [1/2 definitions] |
| phoenix |
(sometimes cap.) a beautiful bird in Egyptian mythology that lives for five hundred years, then sets itself on fire and rises alive again from the ashes. The phoenix is a symbol of immortality. |
| Roman numeral |
a letter used as a number in the ancient Roman number system. The letter I equals 1, V equals 5, X equals 10, L equals 50, C equals 100, D equals 500, and M equals 1,000. In this system, a letter followed by one of equal or lesser value means the two are added; seven is VII, or 5+1+1. A letter followed by one of greater value means that the first is subtracted from the second; four hundred is CD, or 500-100. |
| shilling |
the main unit of money of Kenya and several other African countries. A shilling is equal to one hundred cents. [1/2 definitions] |
| thousand |
the number that is equal to ten times one hundred; 1,000. [1/4 definitions] |