| A | B |
|---|
| dehydrated | taking water or moisture from |
| chronic | lasting a long time; suffering long from an illness |
| synchronize | occur at the same time; agree in time |
| thermometer | an instrument for measuring temperature |
| centimeter | a unit of length equal to 1/100th of a meter |
| hydraulic | operated by the pressure of water at rest or in motion |
| chronological | the history of events based on their time order |
| thermostat | an automatic device for regulating temperature |
| barometer | instrument for measuring the temperature of air; weather predictor |
| symmetry | a regular, balanced arrangement on opposite sides of a line |
