Heat Exhaustion: The effect of excessive heat, particularly when combined with high humidity, on a human being. Signs of heat exhaustion include a general weakness, heavy sweating and clammy skin, dizziness and/or fainting, and muscle cramps.

 

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Heat Exhaustion: The effect of excessive heat, particularly when combined with high humidity, on a human being. Signs of heat exhaustion include a general weakness, heavy sweating and clammy skin, dizziness . . . View Full Definition

Heating Load: The amount of heating required to keep a building at a specified temperature during the winter, usually 65° F, regardless of outside temperature.

Heating Degree Day: One heating degree day is given for each degree that the daily mean temperature is below 65°F. It is used as an indication of fuel consumption.

International Wheat Agreement (IWA): Replaced in 1995 by the International Grains Agreement.

Latent Heat: The energy released or absorbed during a change of state.

Molar Heat Capacity: The heat required to raise the temperature of one mole of a substance by 1°C is called the molar heat capacity of the substance. Molar heat capacity is an intensive property with SI system u . . . View Full Definition

Heathland: Open uncultivated land (particularly in the british isles) having sandy soil and dominated by small shrubs with small hard leaves (e.g., heather)

Heat Wave: A period of abnormally and uncomfortably hot weather. It could last from several days to several weeks. The Weather Channel uses the following criteria for a heat wave: a minimum of ten stat . . . View Full Definition

Heat Stroke: Introduced to the body by overexposure to high temperatures, particularly when accompanied by high humidity. The signs of heat stroke include when an individual's body temperature is greater . . . View Full Definition

Heat Sink: Parts of an amplifier, typically heavy metal 'fins,' and a section of the frame of the speaker used to conduct and radiate heat away from the ponit of electrical consumption, or motor assembly.