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| Degree
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(1) Any successive step or stage in a series or process. (2) Social, official rank, position or class. (3) A unit of measure for arcs or angles. (4) One 360th part of the circumference of a circle. |
| Degree day
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A unit for measuring the extent that the outdoor daily average temperature (the mean of the maximum and minimum daily dry-bulb temperatures) falls below, or falls above an assumed base temperature, normally taken as 65 degrees Fahrenheit, unless otherwise stated. One degree day is counted for each degree below (for heating) or above (in the case of cooling) the base, for each calendar day on which the temperature goes below or above the base. |
| Degree hour
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The product of 1 hour, and usually the number of degrees Fahrenheit the hourly mean temperature is above a base point (usually 65 degrees Fahrenheit); used in roughly estimating or measuring the cooling load in cases where processes heat, heat from building occupants, and humidity are relatively unimportant compared to the dry-bulb temperature. |
| Degree of difficulty production factor
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Formula used to evaluate the amount of time it may take to complete a job or project, depending on the difficulty and working conditions that exist. Compensation is derived depending on the difficulty level so that the rate of production on different jobs can be compared equally. |
| Degree rise
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Difference between the starting water temperature and the ending temperature after heating is complete. |
| Degree-day
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A unit of measure representing one degree of declination from a standard temperature in the average temperature of one day, used in determining fuel needed to maintain a given temperature between the mean and 65 degrees over 24 hours requirements. |
| Dehumidification
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The reduction of water vapor in air by cooling the air below the dew point; removal of water vapor from air by chemical means, refrigeration, etc. |
| Dehumidifier
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Mechanism or machine to remove moisture from the air. |
| Dehumidify
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To remove moisture from the air. |
| Dehydrate
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(1) To lose water & become dry. (2) To remove water from a substance; to dry them for future use. |
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