| MPD | main pancreatic duct; maximum permissible dose; mean population doubling; membrane potential differe... |
|---|---|
| PD | Doctor of Pharmacy; Dublin Pharmacopoeia; interpupillary distance; Paget disease; pancreatic duct; p... |
| mho | reciprocal ohm, siemens unit [ohm spelled backwards] |
| PAVNRT | paroxysmal atrioventricular nodal reciprocal tachycardia |
| RA | radioactive; ragocyte; ragweed antigen; rapidly adapting [receptors]; reactive arthritis; reciprocal... |
| RT | reciprocal translocation |
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| A-aDO2 | Alveolar-arterial oxygen difference |
| A-VO2 | Arteriovenous oxygen difference |
| BMLD | binaural masking level difference |
| CUD | Crossed-Uncrossed Difference |
| alveolar-arterial oxygen difference | The difference or gradient between the partial pressure of oxygen in the alveolar spaces and the arterial blood: P(A-a)02. Normally in young adults this value is less than 20 mm Hg. See: alveolar gas equation. (05 Mar 2000) |
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| arteriovenous carbon dioxide difference | <physiology> The difference in carbon dioxide content (in ml per 100 ml blood) between arterial and venous blood. (05 Mar 2000) |
| arteriovenous oxygen difference | <physiology> The difference in the oxygen content (in ml per 100 ml blood) between arterial and venous blood. (05 Mar 2000) |
| A-V difference | <abbreviation> Arteriovenous difference of concentration of a substance. (05 Mar 2000) |
| brightness difference threshold | The smallest difference that can be perceived as a difference in brightness. Synonym: light difference. (05 Mar 2000) |
| rank-difference correlation | The relationship between paired series of measurements, each ranked according to magnitude, which yields a coefficient known as rho; the value of rho varies from zero (no relationship) to +1.00 (perfect relationship). (05 Mar 2000) |
| cation-anion difference | <biochemistry> The difference between the sum of the measured cations and anions in the plasma or serum calculated as follows: (Na + K) -(Cl + HCO3) = < 20 mmol/l. Elevated values may occur in diabetic or lactic acidosis; normal or low values occur in bicarbonate-losing metabolic acidoses. Synonym: cation-anion difference. (05 Mar 2000) |
| standard error of difference | A statistical index of the probability that a difference between two sample means is greater than zero. (05 Mar 2000) |
| difference | 1. The act of differing; the state or measure of being different or unlike; distinction; dissimilarity; unlikeness; variation; as, a difference of quality in paper; a difference in degrees of heat, or of light; what is the difference between the innocent and the guilty? "Differencies of administration, but the same Lord." (1 Cor. Xii. 5) 2. Disagreement in opinion; dissension; controversy; quarrel; hence, cause of dissension; matter in controversy. "What was the difference? It was a contention in public." (Shak) "Away therefore went I with the constable, leaving the old warden and the young constable to compose their difference as they could." (T. Ellwood) 3. That by which one thing differs from another; that which distinguishes or causes to differ;; mark of distinction; characteristic quality; specific attribute. "The marks and differences of sovereignty." (Davies) 4. Choice; preference. "That now be chooseth with vile difference To be a beast, and lack intelligence." (Spenser) 5. An addition to a coat of arms to distinguish the bearings of two persons, which would otherwise be the same. See Augmentation, and Marks of cadency, under Cadency. 6. <logic> The quality or attribute which is added to those of the genus to constitute a species; a differentia. 7. <mathematics> The quantity by which one quantity differs from another, or the remainder left after subtracting the one from the other. Ascensional difference. See Ascensional. Synonym: Distinction, dissimilarity, dissimilitude, variation, diversity, variety, contrariety, disagreement, variance, contest, contention, dispute, controversy, debate, quarrel, wrangle, strife. Origin: F. Difference, L. Differentia. Source: Websters Dictionary (01 Mar 1998) |
| difference equation | <epidemiology> The mathematical formulation corresponding to a discrete time model. (05 Dec 1998) |
| light difference | The difference in light sensitivity of the two eyes. Synonym: brightness difference threshold. (05 Mar 2000) |
| reciprocal | 1. Recurring in vicissitude; alternate. 2. Done by each to the other; interchanging or interchanged; given and received; due from each to each; mutual; as, reciprocal love; reciprocal duties. "Let our reciprocal vows be remembered." (Shak) 3. Mutually interchangeable. "These two rules will render a definition reciprocal with the thing defined." (I. Watts) 4. Reflexive; applied to pronouns and verbs, but sometimes limited to such pronouns as express mutual action. 5. <mathematics> Used to denote different kinds of mutual relation; often with reference to the substitution of reciprocals for given quantities. See the Phrases below. <mathematics> Reciprocal equation, those terms which have the same signification, and, consequently, are convertible, and may be used for each other. Synonym: Mutual, alternate. Reciprocal, Mutual. The distinctive idea of mutual is, that the parties unite by interchange in the same act; as, a mutual covenant; mutual affection, etc. The distinctive idea of reciprocal is, that one party acts by way of return or response to something previously done by the other party; as, a reciprocal kindness; reciprocal reproaches, etc. Love is reciprocal when the previous affection of one party has drawn forth the attachment of the other. To make it mutual in the strictest sense, the two parties should have fallen in love at the same time; but as the result is the same, the two words are here used interchangeably. The ebbing and flowing of the tide is a case where the action is reciprocal, but not mutual. Origin: L. Reciprocus; of unknown origin. 1. That which is reciprocal to another thing. "Corruption is a reciprocal to generation." (Bacon) 2. <mathematics> The quotient arising from dividing unity by any quantity; thus 1/4 is the reciprocal of 4; 1/(a + b) is the reciprocal of a + b. The reciprocal of a fraction is the fraction inverted, or the denominator divided by the numerator. Source: Websters Dictionary (01 Mar 1998) |
| reciprocal anchorage | Anchorage in which the movement of one or more teeth is balanced against the movement of one or more opposing teeth. (05 Mar 2000) |
| reciprocal arm | A clasp arm or other extension used on a removable partial denture to oppose the action of some other part or parts of the appliance. (05 Mar 2000) |
| reciprocal beat | See: reciprocal rhythm. (05 Mar 2000) |
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