| whr | watt-hour |
|---|---|
| mrhm | milliroentgens per hour at one meter |
| rhm | roentgens per hour at 1 meter |
| mm | millimeter; 1/1000 Meter, 10-3 Meter |
| dBW | decibels above 1 watt |
| W | Watt |
|---|---|
| H | 1-hour |
| LFCM | Laser flare-cell meter |
| PFM | Peak Flow Meter |
| PAM | Potential Acuity Meter |
| watt | <physics> A unit of power or activity equal to 10^7 C.G.S. Units of power, or to work done at the rate of one joule a second. An English horse power is approximately equal to 746 watts. Origin: From the distinguished mechanician and scientist, James Watt. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| 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) |
| blood glucose meter | A machine that helps test how much glucose (sugar) is in the blood. A specially coated strip containing a fresh sample of blood is inserted in a machine, when then calculates the correct level of glucose in the blood sample and shows the result in a digital display. Some meters have a memory that can store results from multiple tests. (09 Oct 1997) |
| candle-meter | A unit of light or illumination; the reception of a luminous flux of 1 lumen per square meter of surface. Synonym: candle-meter, meter-candle. Abbreviation: lx Origin: L. Light (05 Mar 2000) |
| rate meter | A device that continuously displays the magnitude of events averaged over varying time intervals. (05 Mar 2000) |
| ventilation meter | A meter used to measure tidal and minute ventilatory volumes. (05 Mar 2000) |
| Venturi meter | A device for measuring flow of a fluid in terms of the drop in pressure when the fluid flows into the constriction of a Venturi tube. (05 Mar 2000) |
| gram-meter | <unit> A unit of energy equal to 100 gram-centimeters. (05 Mar 2000) |
| meter | 1. One who, or that which, metes or measures. See Coal-meter. 2. An instrument for measuring, and usually for recording automatically, the quantity measured. Dry meter, a gas meter having measuring chambers, with flexible walls, which expand and contract like bellows and measure the gas by filling and emptying. Wt meter, a gas meter in which the revolution of a chambered drum in water measures the gas passing through it. Origin: From Mete to measure. Source: Websters Dictionary (01 Mar 1998) |
| meter angle | The amount of convergence required to view binocularly an object 1 meter distant and exerting 1 diopter of accommodation. Synonym: unit of ocular convergence. (05 Mar 2000) |
| meter-candle | A unit of light or illumination; the reception of a luminous flux of 1 lumen per square meter of surface. Synonym: candle-meter, meter-candle. Abbreviation: lx Origin: L. Light (05 Mar 2000) |
| meter-kilogram-second system | An absolute system based on the meter, kilogram, and second; the basis of the International System of Units. (05 Mar 2000) |
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