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(răn′sĭd) [L. rancidus, stink] Having a disagreeable odor resulting from the breakdown of double bonds in fatty acids.
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(răn-sĭd′ĭ-tē) The condition of being rancid.
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(ran′dŏm) 1. Without order; unpredictable; unintentionally complex. 2. Not selected.
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(ran″dŏ-mĭ-zā′shŏn) In research, a method used to assign subjects to experimental groups without introducing biases into a study. SYN: random sampling.
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(rānj) In statistics, the difference between the highest and lowest in a set of variables or in a series of values or observations.
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r. of accommodation The difference between the least and the greatest distance of distinct vision. SEE: accommodation.
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host r. All the various organisms that a parasite or pathogen is capable of infecting.
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interquartile r. The middle 50% of a set of data. It represents all the data greater than or equal to the 25th percentile and less than or equal to the 75th percentile.
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r. of motion ABBR: ROM. 1. The possible excursion of motion at a joint, accomplished by an examiner, without any muscle contraction by the patient. The excursion can be measured by a goniometer and is normally slightly greater than active range of motion. The examiner assesses the maximum excursion at both its beginning and end. SEE: range-of-motion exercise for illus.; goniometer. 2. An exercise in which an external force moves a joint through its excursion without any effort by the patient. Passive range of motion exercise is used when the patient is unable to move or when active motion is contraindicated.
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passive r. of motion ABBR: PROM. 1. The possible excursion of motion at a joint, accomplished by an examiner, without any muscle contraction by the patient. This can be measured by a goniometer. The excursion is normally slightly greater than active range of motion. The examiner assesses the end point. 2. An exercise in which an external force moves a joint through its excursion without any effort by the patient. PROM exercise is used when the patient is unable to move or when active motion is prohibited.
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(rā′nīn) [L. rana, a frog] 1. Pert. to a ranula, or the region beneath the tip of the tongue. 2. The branch of the lingual artery supplying that area. 3. Pert. to frogs.
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(ră-ní′tĭ-dēn) A histamine H2 antagonist and antiulcer agent, administered orally or intravenously for short-term treatment of active duodenal ulcers and benign gastric ulcers.
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Rankin scale, Rankin score
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(ran′yŭ-lă) [L., ranula, a little frog] ...