Millibar (noun)

A unit of pressure equal to one-thousandth of a bar, commonly used in meteorology to measure atmospheric pressure.

Origin:

Derived from the latin word "mille" meaning "thousand" and the greek word "baros" meaning "weight". the term was first used in the 19th century to refer to a unit of pressure.

Examples:

1. The pressure at sea level is approximately 1013 millibars.
2. The weather forecast called for a low pressure system with a central pressure of 997 millibars.
3. The millibar is a convenient unit for measuring small differences in atmospheric pressure.
4. The barometer showed a drop of 12 millibars in the past hour, indicating a storm was approaching.
5. The meteorologist reported that the pressure in the eye of the hurricane was only 905 millibars, making it a Category 5 storm.