Category: Define

Depression In meteorology, it is another name for an area of low pressure, a low, or trough. It also applies to a stage of tropical

El Niño The cyclical warming of East Pacific Ocean sea water temperatures off the western coast of South America that can result in significant changes

Dew Condensation in the form of small water drops that forms on grass and other small objects near the ground when the temperature has fallen

Environment The sum total of all the external conditions that effect an organism, community, material, or energy.

Equator The geographic circle at 0 degrees latitude on the earth’s surface. It is equal distance from the North and South Poles and divides the

Dew Point The temperature to which air must be cooled at a constant pressure to become saturated. Temperature The measure of molecular motion or the

Equatorial Trough The quasi-continuous area of low pressure between the subtropical high pressure areas in both the Northern and Southern Hemisphere. Low Pressure System An

Diffluence A rate at which wind flow spreads apart along an axis oriented normal to the flow in question. The opposite of confluence. Wind Air

Equinox The point at which the ecliptic intersects the celestial equator. Days and nights are most nearly equal in duration. In the Northern Hemisphere, the

Evaporation The physical process by which a liquid, such as water is transformed into a gaseous state, such as water vapor. It is the opposite