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| C1 |
abbreviation of "Celsius," or "Centigrade." |
| Cal.1 |
abbreviation of "large calorie," or "large calories"; the amount of energy needed to raise the temperature of one kilogram of water one degree Celsius. |
| Celsius |
When we use the word Celsius, we are talking about a system people can use when they measure temperature. In most countries of the world, people use this system called Celsius. In America, though, people use a system called Fahrenheit. When you see the letter C after a temperature, as in 22� C, the C stands for Celsius. When it is 22 degrees Celsius outside, the weather feels warm but not hot. It's a nice day to go to the park and play. When it is 22 degrees Fahrenheit, it's quite cold, maybe snowing, and you need a warm jacket. |
| centigrade |
see "Celsius." |
| Fahrenheit |
When we use the word Fahrenheit, we are talking about a system people can use when they measure temperature. In America, people use the Fahrenheit system, but, in most other countries, they use a system called Celsius. When you see the letter F after a temperature, as in 72� F, the F stands for Fahrenheit. When it is zero degrees outside measured by the Fahrenheit system, it is very cold and you need a heavy coat to stay warm. When it is 100 degrees measured by the Fahrenheit system, it is very hot, and you probably want to jump in a swimming pool! |
| Kelvin |
a temperature scale having intervals that correspond to those of the Celsius scale. On the Kelvin scale, zero degrees (zero Kelvins)is equal to -273.15 degrees Celsius. [1/3 definitions] |
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