| RF | radial fiber; radio frequency; receptive field; regurgitant fraction; Reitland-Franklin [unit]; rela... |
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| RR | radiation reaction; radiation response; rate ratio; rational recovery [group]; recovery room; relati... |
| RSA | rabbit serum albumin; regular spiking activity; relative specific activity; relative standard accura... |
| RAPD | Relative Afferent Pupillary Defect |
| RBE | Relative Biological Effectiveness |
| aRR | Adjusted relative risk |
|---|---|
| FDR | first degree relative |
| HRR | Haplotype Relative Risk |
| HHRR | Haplotype-based Haplotype Relative Risk |
| MRDR | Modified Relative Dose Response |
| relative | One who, or that which, relates to, or is considered in its relation to, something else; a relative object or term; one of two object or term; one of two objects directly connected by any relation. Specifically: A person connected by blood or affinity; strictly, one allied by blood; a relation; a kinsman or kinswoman. "Confining our care . . . To ourselves and relatives." . A relative prnoun; a word which relates to, or represents, another word or phrase, called its antecedent; as, the relatives " who", "which", "that". Source: Websters Dictionary (01 Mar 1998) |
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| relative accommodation | Quantity of accommodation required for single binocular vision for any specified distance, or for any particular degree of convergence. (05 Mar 2000) |
| relative afferent pupillary defect | An asymmetry of the pupillomotor input between the two eyes; tested by alternating the light from one eye to the other and comparing the direct light reactions. (05 Mar 2000) |
| relative aperture | <microscopy> The ratio of the focal length of a lens to the diameter of its entrance pupil. This gives a number known as the f-number, usually written f:8, f:16, etc. Thus, if the focal length is divided by the number 8, 16, etc., the result will be the diameter of the entrance pupil of the lens, or if the diaphragm of the lens is wide open it will be very nearly the diameter of the free aperture of the lens. See: F-number. (05 Aug 1998) |
| relative basal area | An estimate of basal area for trees, such as produced by the Bitterlich sampling technique. (09 Oct 1997) |
| relative biological effectiveness | The ratio of radiation dosages required to produce identical change based on a formula comparing other types of radiation with that of gamma or roentgen rays. (12 Dec 1998) |
| relative dehydration | Water deficit relative to content of solutes contributing effective osmotic pressure; a state of increased effective osmotic pressure of body fluids. (05 Mar 2000) |
| relative immunity | A modified, not completely effective resistance that results when there is a sort of "fluctuating equilibrium" between the defense mechanisms of the host and the infective agent. (05 Mar 2000) |
| relative incompetence | Imperfect closure of a cardiac valve, in consequence of excessive dilation of the corresponding cavity of the heart. (05 Mar 2000) |
| relative leukocytosis | An increased proportion of one or more types of leukocytes in the circulating blood, without an actual increase in the total number of white blood cells. (05 Mar 2000) |
| relative molecular mass | The sum of the atomic weight's of all the atoms constituting a molecule; the mass of a molecule relative to the mass of a standard atom, now 12C (taken as 12.000). Relative molecular mass (Mr) is the mass relative to the dalton and has no units. See: atomic weight. Synonym: molecular mass, molecular weight ratio, relative molecular mass. (05 Mar 2000) |
| relative polycythemia | A relative increase in the number of red blood cells as a result of loss of the fluid portion of the blood. (05 Mar 2000) |
| relative refractory period | The period between the effective refractory period and the end of the refractory period; fibres then respond only to high intensity stimuli and the impulses conduct more slowly than normally. (05 Mar 2000) |
| relative risk | <epidemiology> The proportion of diseased people amongst those exposed to the relevant risk factor divided by the proportion of diseased people amongst those not exposed to the risk factor. This should be used in those cohort studies where those with and without disease are followed to observe which individuals become diseased. (05 Dec 1998) |
| relative scotoma | A scotoma in which there is visual depression but not complete loss of light perception. (05 Mar 2000) |
| blood relative | A relative of a person sharing some of the sources from which genes are derived. These will include many of the genes that operate in the blood and its constituents but no special importance attaches to the blood as a vehicle of inheritance. Spouses are not ordinarily blood relatives and when they are, the marriage is consanguineous and carries a higher risk than average of progeny homozygous by descent from ancestors in common. Such marriages are discouraged and within certain degrees of kindred may be illegal. Origin: a folk metaphor of breeding (05 Mar 2000) |
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| 5-year relative survival rate | <statistics> The likelihood that a patient will not die from causes associated with his or her cancer for at least 5 years after diagnosis. This is the standard many professionals use when determining someone a survivor of cancer. (16 Dec 1997) |
Synonyms : Biological Effectiveness, Relative, Effectiveness, Biologic Relative, Effectiveness, Biological Relative, Relative Biologic Effectiveness, Biologic Effectiveness, Relative, Biologic Relative Effectiveness, Biological Relative Effectiveness
Synonyms : Resource Based Relative Value Scale, Relative Value Scale, Relative Value Schedules, Relative-Value Schedule, Scale, Relative Value, Scales, Relative Value, Schedule, Relative-Value, Schedules, Relative-Value
| relative molecular mass |
molecular weight: (chemistry) the sum of the relative atomic masses of the constituent atoms of a molecule
Ãâó: wordnet.princeton.edu/perl/webwn
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| relative analgesia |
in dental anesthesia, a maintained level of conscious-sedation, short of general anesthesia, in which the pain threshold is elevated, usually induced in inhalation of nitrous oxide and oxygen.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| relative survival rate |
A specific measurement of survival. For cancer, the rate is calculated by adjusting the survival rate to remove all causes of death except cancer. The rate is determined at specific time intervals, such as 2 years and 5 years after diagnosis.
Ãâó: www.stjude.org/glossary
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| relative frequency |
The number of data points within a given class (frequency) divided by the total number of data points.
Ãâó: highered.mcgraw-hill.com/sites/0072480823/student_...
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| relative frequency |
Proportionate frequency per observation. If an event occurs N times in N trials, its relative frequency is N /N. Relative frequency is the empirical counterpart of probability.
Ãâó: amsglossary.allenpress.com/glossary/browse
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| relative | an animal or plant that bears a relationship to another (as related by common descent or by membership in the same genus) |
|---|---|
| relative | a person related by blood or marriage |
| relative | not absolute or complete |
| relative | properly related in size or degree or other measurable characteristics |
| relative | (chemistry) the ratio of the atomic mass of an element to half the atomic mass of carbon-12 |
| relative | a clause introduced by a relative pronoun |
| relative | the ratio of the density of something to the density of a standard |
| relative | the ratio of the number of observations in a statistical category to the total number of observations |
| relative | the ratio of the amount of water in the air at a give temperature to the maximum amount it could hold at that temperature |
| relative | the relative frequency of occurrence of something |
| relative | (in an election with more than 2 options) the number of votes for the candidate or party receiving the greatest number (but less that half of the votes) |
| relative | (chemistry) the sum of the relative atomic masses of the constituent atoms of a molecule |
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