| 释义 |
heat unit
Thesaurus| Noun | 1. |  heat unit - a unit of measurement for work energy unit, work unitunit, unit of measurement - any division of quantity accepted as a standard of measurement or exchange; "the dollar is the United States unit of currency"; "a unit of wheat is a bushel"; "change per unit volume"erg - a cgs unit of work or energy; the work done by a force of one dyne acting over a distance of one centimeterelectron volt, eV - a unit of energy equal to the work done by an electron accelerated through a potential difference of 1 voltJ, joule, watt second - a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one secondgram calorie, small calorie, calorie - unit of heat defined as the quantity of heat required to raise the temperature of 1 gram of water by 1 degree centigrade at atmospheric pressureCalorie, kilocalorie, kilogram calorie, large calorie, nutritionist's calorie - a unit of heat equal to the amount of heat required to raise the temperature of one kilogram of water by one degree at one atmosphere pressure; used by nutritionists to characterize the energy-producing potential in foodB.Th.U., British thermal unit, BTU - a unit of heat equal to the amount of heat required to raise one pound of water one degree Fahrenheit at one atmosphere pressure; equivalent to 251.997 caloriestherm - a unit of heat equal to 100,000 British thermal unitswatt-hour - a unit of energy equal to the power of one watt operating for one hourB.T.U., Board of Trade unit, kilowatt hour, kW-hr - a unit of energy equal to the work done by a power of 1000 watts operating for one hourfoot-pound - a unit of work equal to a force of one pound moving through a distance of one footfoot-ton - 2240 foot-poundsfoot-poundal - a unit of work equal to a force of one poundal moving through a distance of one foothorsepower-hour - a unit of work equal to the work done by one horsepower in one hourkilogram-meter - a unit of work equal to the work done by a one kilogram force operating through a distance of one meter |
EncyclopediaSeeUnitheat unit
unit [u´nit] 1. a single thing; one segment of a whole that is made up of identical or similar segments.2. a specifically defined amount of anything subject to measurement, as of activity, dimension, velocity, volume, or the like.3. a distinct part of a hospital, usually having a specific physical location and serving a defined function; see under names of specific units.Ångström unit angstrom.atomic mass unit (u) (amu) the unit of mass equal to ¹⁄₁₂ the mass of the nuclide of carbon 12. Called also dalton.autonomous nursing unit a nursing unit under a decentralized administration system in which the staff is responsible for all aspects of unit functioning.British thermal unit (BTU) a unit of heat formerly widely used, being the amount necessary to raise the temperature of 1 pound of water from 39° to 40°F., equal to approximately 252 calories" >calories.CH50 unit the amount of complement that will lyse 50 per cent of a standard preparation of sheep red blood cells coated with antisheep erythrocyte antibody. continuing education unit (CEU) a unit of credit for educational offerings given to professional persons, determined by a professional organization according to a mathematical formula after a thorough review of the program of study, the qualifications of the instructors, and the program objectives.critical care unit intensive care unit.electrostatic u's (esu) that system of units that is based on the fundamental definition of a unit charge as one that will repel a similar charge with a force of 1 dyne when the two charges are 1 cm apart in a vacuum.environmental control unit a computerized system that allows the handicapped individual to operate several different appliances using a keyboard or other input device.heat unit the amount of heat energy that is produced by one kVp (kilovolt peak) and one mA (milliampere) for one second with single phase, full wave rectified radiographic equipment.Hounsfield unit an arbitrary unit of x-ray attenuation used for CT scans. Each voxel is assigned a value on a scale in which air has a value of −1000; water, 0; and compact bone, +1000.intensive care unit see intensive care unit.International unit (IU) 1. a unit of enzyme activity equal to the amount of enzyme that catalyzes the conversion of one micromole of substrate or coenzyme per minute under specified conditions (temperature, pH, and substrate concentration) of the assay method. Abbreviated U.2. any of several arbitrary units that have been adopted by international bodies to express the quantities of certain vitamins (A, C, D, and thiamine hydrochloride), hormones (androgen, chorionic gonadotropin, estradiol benzoate, estrone, insulin, progesterone, and prolactin), and drugs (digitalis and penicillin).Kienböck's unit a unit of x-ray exposure equal to 0.1 erythema dose; symbol X.motor unit the unit of motor activity formed by a motor nerve cell and its many innervated muscle fibers.postanesthesia care unit (PACU) a specialty unit in a hospital for giving care" >postanesthesia care (care of patients recovering from anesthesia and intravenous sedation); formerly called recovery room.radiologic u's units used to measure radiation, including roentgens, rads, rems, and curies.u's of service (UOS) 1. the number of procedures done by a department.2. individuals or groups of individuals who are the recipients of nursing care.short procedures unit (short term care unit) a nursing unit where patients are briefly cared for following a medical or surgical procedure and are then discharged without spending the night.SI unit any unit of the International System of units (the metric system" >metric system); see also si units.step-down unit a nursing unit designated to provide care for patients who are stable enough to be discharged from the intensive care unit but are not yet ready to be cared for on a medical-surgical unit.Svedberg unit (S) a unit equal to 10−13 second used for expressing sedimentation coefficients of macromolecules.Svedberg flotation unit (Sf) a unit equal to 10−13 second used for expressing negative sedimentation coefficients of macromolecules that float rather than sink in a centrifuge, e.g., lipoproteins.terminal respiratory unit the functional unit of the lung, including a respiratory bronchiole, alveolar ducts and sacs, and alveoli; called also primary lobule of lung and primary respiratory lobule.USP unit one used in the United States Pharmacopeia for expressing potency of drugs and other preparations.heat unit, HUThe amount of heat created at the anode during the production of x-ray photons. It is the product of the milliamperage times the seconds of exposure times the kilovoltage peak. heat unit
Synonyms for heat unitnoun a unit of measurement for workSynonymsRelated Words- unit
- unit of measurement
- erg
- electron volt
- eV
- J
- joule
- watt second
- gram calorie
- small calorie
- calorie
- kilocalorie
- kilogram calorie
- large calorie
- nutritionist's calorie
- B.Th.U.
- British thermal unit
- BTU
- therm
- watt-hour
- B.T.U.
- Board of Trade unit
- kilowatt hour
- kW-hr
- foot-pound
- foot-ton
- foot-poundal
- horsepower-hour
- kilogram-meter
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