| retromolar pad |
a mass of tissue, often pear-shaped, located at the distal termination of the mandibular residual ridge, and made up of the retromolar papilla and the retromolar glandular prominence.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| retraction ring |
a ringlike thickening and indentation occurring in normal labor at the junction of the isthmus and corpus uteri, delineating the upper contracting portion and the lower dilating portion (physiologic retraction r.), or a persistent retraction ring in abnormal or prolonged labor that obstructs expulsion of the fetus (pathologic retraction r.). Cf. constriction r.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| retrograde amnesia |
inability to recall events that occurred before the actual onset of amnesia; loss of memories of past events. Cf. anterograde a.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| retrobulbar pupillary reflex |
slight dilation of the pupil, which contracts under light stimulation and then dilates while the light stimulation is still present.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| retrograde aortography |
radiography of the aorta after passage of a catheter through a peripheral artery to the aorta and the rapid injection of a radiopaque substance.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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