Transpiration - The process by which water escapes plants into the air and turns into water vapor. The rate at which plants lose water to the air increases as the temperature increases. Corn plants transpire at a rate higher than most plants. This means that corn needs more moisture to survive compared to most plant life.

Chromosphere - In relation to the sun, the chromosphere is the second of the 3 main layers of the sun's atmosphere. The chromosphere sits above the photosphere and below the solar transition region. The chromosphere is composed mainly of hydrogen gas that is hotter than 6000 degrees kelvin or 10,300 degrees on the fahrenheit scale.

Veering Wind - This is a way to describe how the wind direction changes with respect to height. A veering wind means that the wind direction is turning in a clockwise sense with increasing height. An example of a veering wind is when the wind at the surface is from the south and a few thousand feet above the surface the wind direction is from the west. The opposite of a veering wind is a backing wind.

Dry line - A boundary that separates a moist air mass from a dry air mass. When a dry line propagates through an area the dew point will abruptly fall off, but the temperature will change little. During certain weather patterns, dry lines can be a catalyst for thunderstorm development.

Neige - Neige is the french word for snow. For example, to say "it is snowing today," one would say, Il neige aujourd'hui.

El Nino - An anomalous warming of ocean waters in the east central equatorial Pacific. El Nino events occur every two to seven years and have local as well as global impacts. Nutrient deficient waters cripple the fishing industry off the coast of western South America during El Ninos, while global weather patterns can be significantly altered due to the presence of an El Nino.

Multi-Vortex Tornado - A tornado made up of several smaller funnels. Most, but not all, violent tornadoes are of this variety. The winds in subvortices can be over 100 mph stronger than the winds in the main tornado circulation. This is likely the reason that damage from tornadoes can vary greatly along its path.