| heat apoplexy | A severe and often fatal illness produced by exposure to excessively high temperatures, especially when accompanied by marked exertion. It can manifest by elevated body temperature, lack of sweating, hot dry skin, and neurologic symptoms; unconsciousness, paralysis, headache, vertigo, confusion. In severe cases very high fever, vascular collapse, and coma develop. Synonym: heat apoplexy, heat hyperpyrexia, malignant hyperpyrexia, thermic fever. (05 Mar 2000) |
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| heat capacity | <chemistry> The amount of energy required to raise the temperature of an object by one degree Celsius (or Kelvin), it is represented by the symbol C and is given in units of J/K. (09 Jan 1998) |
| heat coagulation test | A test for measurement of protein in urine; albumin and globulin are coagulated by heat at an acid pH, and the amount of turbidity present provides a qualitative estimation of the degree of proteinuria. (05 Mar 2000) |
| heat cramp | A form of heat illness that results from profuse sweating and loss of body salts (sodium). Heat cramps are manifest by painful spasms of abdominal and skeletal muscles. (27 Sep 1997) |
| heat cramps | Muscle spasms induced by severe exertion in intense heat, accompanied by considerable pain; sometimes related to salt deficiency, hyperventilation, or overindulgence in alcohol. Synonym: myalgia thermica. (05 Mar 2000) |
| heat exhaustion | A form of heat illness that results when the victim is dehydrated (fluid depleted). Common symptoms include: fatigue, lightheadedness, nausea, vomiting, headache, rapid heartbeat and lowered blood pressure. (27 Sep 1997) |
| heat hyperpyrexia | A severe and often fatal illness produced by exposure to excessively high temperatures, especially when accompanied by marked exertion. It can manifest by elevated body temperature, lack of sweating, hot dry skin, and neurologic symptoms; unconsciousness, paralysis, headache, vertigo, confusion. In severe cases very high fever, vascular collapse, and coma develop. Synonym: heat apoplexy, heat hyperpyrexia, malignant hyperpyrexia, thermic fever. (05 Mar 2000) |
| heat illness | A general term which describes three forms of heat related injury: heat cramps, heat exhaustion and heatstroke. (27 Sep 1997) |
| heat instability test | A test for the presence of unstable haemoglobins; fresh red blood cells lysed in distilled water develop a precipitate within one hour at 50캜 if unstable haemoglobin is present. (05 Mar 2000) |
| heat lamp | A lamp that emits infrared light and produces heat; used to apply topical heat to the skin. Synonym: thermolamp. (05 Mar 2000) |
| heat oedema | Oedema caused by excessively high external temperature. (05 Mar 2000) |
| heat of combustion | The quantity of heat liberated per gram-molecular weight when a substance undergoes complete oxidation. (05 Mar 2000) |
| heat of compression | Heat produced when a gas is compressed. (05 Mar 2000) |
| heat of crystallization | The quantity of heat liberated or absorbed per mol when a substance passes into the crystalline state. (05 Mar 2000) |
| heat of dissociation | The heat (expressed in calories or joules) expended in the dissociation of 1 mol of a substance into specified products. (05 Mar 2000) |
Synonyms : Mixed Hearing Loss, Hearing Loss, Mixed, Hearing Loss, Mixed Conductive Sensorineural, Loss, Mixed Hearing, Losses, Mixed Hearing
Synonyms : Hearing Loss, Noise Induced, Noise-Induced Hearing Loss
Synonyms : Cochlear Hearing Loss, Hearing Loss, Cochlear
Synonyms : Sudden Hearing Loss
Synonyms :
| heat of vaporization |
The amount of heat energy required to convert water from a liquid to a gas.
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| heat capacity |
C The amount of heat per unit mass divided by the temperature change.
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| heat of vaporization |
The heat required to convert a liquid to a vapor.
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| health |
A state of physical and emotional well-being; the absence of disease or ailment.
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| heat of fusion |
(Or latent heat of fusion.) See latent heat.
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| HEA | hazard to the health of those exposed to it |
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| HEA | insurance against loss due to ill health |
| HEA | group insurance that entitles members to services of participating hospitals and clinics and physicians |
| HEA | a state in which you are unable to function normally and without pain |
| HEA | the body of individuals whose work helps to maintain the health of their clients |
| HEA | a person who helps in identifying or preventing or treating illness or disability |
| HEA | conducive to good health of body or mind |
| HEA | free from filth and pathogens |
| HEA | the quality of promoting good health |
| HEA | improved in health or physical condition |
| HEA | in a levelheaded manner |
| HEA | the state of being vigorous and free from bodily or mental disease |