| Master test | An early and long-used exercise challenge to identify ischemic heart disease using a pair of nine inch steps with a platform on top, the number of trips by the patient arbitrarily chosen and related to age and body weight. See: two-step exercise test. Synonym: Master's two-step exercise test. (05 Mar 2000) |
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| Master's two-step exercise test | An early and long-used exercise challenge to identify ischemic heart disease using a pair of nine inch steps with a platform on top, the number of trips by the patient arbitrarily chosen and related to age and body weight. See: two-step exercise test. Synonym: Master's two-step exercise test. (05 Mar 2000) |
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| master | 1. A male person having another living being so far subject to his will, that he can, in the main, control his or its actions; formerly used with much more extensive application than now. The employer of a servant. The owner of a slave. The person to whom an apprentice is articled. A sovereign, prince, or feudal noble; a chief, or one exercising similar authority. The head of a household. The male head of a school or college. A male teacher. The director of a number of persons performing a ceremony or sharing a feast. The owner of a docile brute, especially a dog or horse. The controller of a familiar spirit or other supernatural being. 2. One who uses, or controls at will, anything inanimate; as, to be master of one's time. "Master of a hundred thousand drachms." (Addison) "We are masters of the sea." (Jowett (Thucyd)) 3. One who has attained great skill in the use or application of anything; as, a master of oratorical art. "Great masters of ridicule." (Maccaulay) "No care is taken to improve young men in their own language, that they may thoroughly understand and be masters of it." (Locke) 4. A title given by courtesy, now commonly pronounced, except when given to boys; sometimes written Mister, but usually abbreviated to Mr. 5. A young gentleman; a lad, or small boy. "Where there are little masters and misses in a house, they are impediments to the diversions of the servants." (Swift) 6. The commander of a merchant vessel; usually called captain. Also, a commissioned officer in the navy ranking next above ensign and below lieutenant; formerly, an officer on a man-of-war who had immediate charge, under the commander, of sailing the vessel. 7. A person holding an office of authority among the Freemasons, especially. The presiding officer; also, a person holding a similar office in other civic societies. Little masters, certain German engravers of the 16th century, so called from the extreme smallness of their prints. Master in chancery, an officer of courts of equity, who acts as an assistant to the chancellor or judge, by inquiring into various matters referred to him, and reporting thereon to the court. Master of arts, one who takes the second degree at a university; also, the degree or title itself, indicated by the abbreviation M. A, or A. M. Master of the horse, the third great officer in the British court, having the management of the royal stables, etc. In ceremonial cavalcades he rides next to the sovereign. Master of the rolls, in England, an officer who has charge of the rolls and patents that pass the great seal, and of the records of the chancery, and acts as assistant judge of the court. . Past master, one who has held the office of master in a lodge of Freemasons or in a society similarly organised. The old masters, distinguished painters who preceded modern painters; especially, the celebrated painters of the 16th and 17th centuries. To be master of one's self, to have entire self-control; not to be governed by passion. To be one's own master, to be at liberty to act as one chooses without dictation from anybody. Master, signifying chief, principal, masterly, superior, thoroughly skilled, etc, is often used adjiectively or in compounds; as, master builder or master-builder, master chord or master-chord, master mason or master-mason, master workman or master-workman, master mechanic, master mind, master spirit, master passion, etc. "Throughout the city by the master gate." (Chaucer) Master joint, a tap for forming the thread in a screw cutting die. Master touch. The touch or skill of a master. Some part of a performance which exhibits very skillful work or treatment. "Some master touches of this admirable piece." . Master work, the most important work accomplished by a skilled person, as in architecture, literature, etc.; also, a work which shows the skill of a master; a masterpiece. Master workman, a man specially skilled in any art, handicraft, or trade, or who is an overseer, foreman, or employer. Origin: OE. Maistre, maister, OF. Maistre, mestre, F. Maitre, fr. L. Magister, orig. A double comparative from the root of magnus great, akin to Gr. Cf. Maestro, Magister, Magistrate, Magnitude, Major, Mister, Mistress, Mickle. Source: Websters Dictionary (01 Mar 1998) |
| Master, Arthur | U.S. Physician, *1895. See: Master test, Master's two-step exercise test. (05 Mar 2000) |
| master cast | A replica of the prepared tooth surfaces, residual ridge areas, and/or other parts of the dental arch as reproduced from an impression. (05 Mar 2000) |
| master eye | The eye that is customarily used for monocular tasks. Synonym: master eye. (05 Mar 2000) |
| master gland | pituitary gland |
| Abbe test plate | <equipment> A long, wedge-shaped coverslip about 0.20 mm thick at one end and 0.10 to 0.12 mm at the other end coated chemically with a silver film on which are ruled horizontal lines. at each variation in thickness of 0.01 mm there are vertical lines. By means of oblique illumination and by focusing on different portions of the plate, it is possible to determine the optimum coverslip thickness for any objective and also, for microscopes with drawtubes, the tube length for best objective performance. The approximate freedom from spherical and chromatic aberrations can also be estimated. Small isolated bits of silver near the edges of the lines form good objects for the star test (05 Aug 1998) |
| acetone test | A test for ketonuria; the suspected urine is shaken up with a few drops of sodium nitroprusside, and strong ammonia water is then gently poured over the mixture; if acetone is present, a magenta ring forms at the line of contact; tablets containing sodium nitroprusside and alkali are now more commonly used. (05 Mar 2000) |
| achievement test | A standardised test used to measure acquired learning, e.g., competence in a specific subject area such as reading or arithmetic, in contrast to an intelligence test which is a useful index of potential ability or learning. (05 Mar 2000) |
| acidified serum test | Lysis of the patient's red cells in acidified fresh serum, specific for paroxysmal nocturnal haemoglobinuria. Synonym: Ham's test. (05 Mar 2000) |
| acid loading test | <nephrology> This is a test used in the diagnosis of renal tubular acidosis. The patient takes ammonium chloride capsules for 3 days to acidify the blood (lower blood pH). A sample of the urine and the blood is then collected and the results are interpreted. (27 Sep 1997) |
| acid perfusion test | <gastroenterology, investigation> A test used to diagnosis gastrooesophageal reflux disease. This investigation requires that the patient swallow 3 tiny tubes into the stomach. A mixture of hydrochloric acid (like stomach acid) and saline are alternatively injected into the tubes. The patient then reports any symptoms they may have. Some patients may vomit. (13 Nov 1997) |
| acid phosphatase test for semen | A screening test for semen by determining acid phosphatase content; because seminal fluid contains high concentrations of acid phosphatase, while other body fluids and extraneous foreign materials have very low concentrations, high values of acid phosphatase on vaginal aspirate or lavage, or on wash fluid from stains, render positive identification of semen, even if the male is aspermic. (05 Mar 2000) |
| acid reflux test | A test to detect gastroesophageal reflux by monitoring oesophageal pH by an electrode in the distal oesophagus either basally or after acid is instilled into the stomach. (05 Mar 2000) |
| ACTH stimulation test | A test for adrenal cortical function; ACTH administered by continuous intravenous infusion, or intramuscularly, evokes an increase in plasma cortisol in normal persons; in adrenal cortical insufficiency, the expected increase in plasma cortisol is limited or nonexistent. (05 Mar 2000) |