| combat disorders | Neurotic reactions to unusual, severe, or overwhelming military stress. (12 Dec 1998) |
|---|---|
| combat exhaustion | See: battle fatigue, posttraumatic stress disorder, war neurosis. (05 Mar 2000) |
| combat neurosis | See: war neurosis, battle fatigue, posttraumatic stress disorder. (05 Mar 2000) |
| milligram hour | An obsolete term for a unit of exposure in radium therapy, i.e., the application of 1 milligram of radium during 1 hour. Synonym: milligramage. (05 Mar 2000) |
| hour | 1. <physics> The twenty-fourth part of a day; sixty minutes. 2. The time of the day, as expressed in hours and minutes, and indicated by a timepiece; as, what is the hour? at what hour shall we meet? 3. Fixed or appointed time; conjuncture; a particular time or occasion; as, the hour of greatest peril; the man for the hour. "Woman, . . . Mine hour is not yet come." (John II. 4) "This is your hour, and the power of darkness." (Luke xxii. 53) 4. A measure of distance traveled. "Vilvoorden, three hours from Brussels." (J. P. Peters) After hours, after the time appointed for one's regular labour. Canonical hours. See Canonical. 5. <astronomy> Hour angle, a line on which the shadow falls at a given hour; the intersection of an hour circle which the face of the dial. Hour plate, the plate of a timepiece on which the hours are marked; the dial. Sidereal hour, the twenty-fourth part of a sidereal day. Solar hour, the twenty-fourth part of a solar day. The small hours, the early hours of the morning, as one o'clock, two o'clock, etc. To keep good hours, to be regular in going to bed early. Origin: OE. Hour, our, hore, ure, OF. Hore, ore, ure, F. Heure, L. Hora, fr. Gr, orig, a definite space of time, fixed by natural laws; hence, a season, the time of the day, an hour. See Year, and cf. Horologe, Horoscope. Source: Websters Dictionary (01 Mar 1998) |
| kilowatt-hour | <unit> A standard measure of electrical energy, equals one kilowatt of power delivered for one hour. Equivalent to 3.6 million joules. For example, 1 kWh will light a 100-watt light bulb for 10 hours. 1 kWh = 3,413 Btu. Abbreviation: kWh (05 Dec 1998) |
| 24-hour cardiac monitor | <apparatus> A recording device, worn by the patient for the purpose of monitoring the hearts rhythm and rate, over a period of 24 hours. (27 Sep 1997) |
| Arneth formula | The normal, approximate ratio of polymorphonuclear neutrophils, based on the number of lobes in the nuclei, as follows: 1 lobe, 5%; 2 lobes, 35%; 3 lobes, 41%; 4 lobes, 17%; 5 lobes, 2%. (05 Mar 2000) |
| Bazett's formula | A formula for correcting the observed Q-T interval in the electrocardiogram for cardiac rate: corrected Q-T = Q-T sec/✓R -R sec. (05 Mar 2000) |
| Bernhardt's formula | <nutrition> A formula used to calculate the ideal weight, in kilograms, for an adult; it is the height in centimeters times the chest circumference in centimeters divided by 240. (14 Aug 2000) |
| Black's formula | A translation of Pignet's formula into British measurements: F = (W + C) -H; F is the empirical factor, W is the weight in pounds, C the chest girth in inches at full inspiration, and H the height in inches; a man is classed as very strong when F is over 120, strong between 110 and 120, good 100 to 110, fair 90 to 100, weak 80 to 90, very weak under 80. (05 Mar 2000) |
| Broca's formula | A fully developed man (30 years old) should weigh as many kilograms as he is centimeters in height over and above 1 meter. (05 Mar 2000) |
| Van Slyke's formula | The value obtained when the square root of the urine flow (when below 2 ml/min) is multiplied by the urine urea concentration and divided by the whole blood urea concentration; represents an old empirical adjustment for the effect of low urine flow on urea excretion; sometimes corrected for body size by dividing by some function of body weight or surface area. Later, plasma concentration was substituted for blood concentration in the calculation. The normal value is about 54 ml/min per 1.73 m2 in an adult person. Synonym: Van Slyke's formula. (05 Mar 2000) |
| Mall's formula | A formula for determining the age (in days) of a human embryo; calculated as the square root of its length (measured from vertex to breech) in millimeters multiplied by 100. (05 Mar 2000) |
| Ranke's formula | A = grams of albumin per liter of a serous fluid: then, A = (sp. Gr. -1000) × 0.52 -5.406. (05 Mar 2000) |