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An altimeter or an altitude meter is an instrument used to measure the altitude of an object above a fixed level. [1] The measurement of altitude is called altimetry , which is related to the term bathymetry , the measurement of depth under water.
QFE - is the barometric altimeter setting that causes an altimeter to read zero when at the reference datum of a particular airfield (in practice, the reference datum is either an airfield center or a runway threshold). In ISA temperature conditions the altimeter will read the height above the airfield/runway in the vicinity of the airfield.
Old altimeters were typically limited to displaying the altitude when set between 950 mb and 1030 mb. Standard pressure, the baseline used universally, is 1013.25 hectopascals (hPa), which is equivalent to 1013.25 mb or 29.92 inches of mercury (inHg). This setting is equivalent to the atmospheric pressure at mean sea level (MSL) in
The exact definition and reference datum varies according to the context (e.g., aviation, geometry, geographical survey, sport, or atmospheric pressure). Although the term altitude is commonly used to mean the height above sea level of a location, in geography the term elevation is often preferred for this usage.
Stedman's Medical Dictionary is a medical dictionary developed for medical students, physicians, researchers, and medical language specialists. Entries include medical terms, abbreviations, acronyms, measurements, and more. Pronunciation and word etymology (showing mostly Latin and Greek prefixes and roots) are provided with most definitions.
Meaning h: hr / hours H: histamine or its receptors (if with subscripts) hemagglutinin: H x: history: HA ; H/A hypertonia arterialis headache calcium hydroxyapatite HAA: hepatitis-associated antigen or #History As Above HAART: highly active antiretroviral therapy HACA: human anti-chimeric antibody: HACE: High-altitude cerebral edema: HACEK
Second, medical roots generally go together according to language, i.e., Greek prefixes occur with Greek suffixes and Latin prefixes with Latin suffixes. Although international scientific vocabulary is not stringent about segregating combining forms of different languages, it is advisable when coining new words not to mix different lingual roots.
Medical terminology is a language used to precisely describe the human body including all its components, processes, conditions affecting it, and procedures performed upon it. Medical terminology is used in the field of medicine .