| BTR | Bezold-type reflex; biceps tendon reflex |
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| CR | calculation rate; calculus removed; calorie-restricted; cardiac rehabilitation; cardiac resuscitatio... |
| MSR | macrophage scavenger receptor; Member of the Society of Radiographers; monosynaptic reflex; muscle s... |
| PR | by way of the rectum [Lat. per rectum]; far point [of accommodation] [Lat. punctum remotum]; palindr... |
| IHP | idiopathic hypoparathyroidism; idiopathic hypopituitarism; individualized health plan; inositol hexa... |
| inverted | 1. Changed to a contrary or counterchanged order; reversed; characterised by inversion. 2. <geology> Situated apparently in reverse order, as strata when folded back upon themselves by upheaval. Inverted arch, an arch placed with crown downward; much used in foundations. Source: Websters Dictionary (01 Mar 1998) |
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| inverted cone bur | A rotary cutting instrument in the shape of a truncated cone with the smaller end attached to the shaft; generally used for entering carious pits or creating undercuts in cavity preparations. (05 Mar 2000) |
| inverted follicular keratosis | A solitary benign epithelial tumour of infundibular hair follicle origin occurring on the face, consisting of a lobulated epidermal downgrowth of keratinizing squamous cells with a pattern of eddies or whorls. (05 Mar 2000) |
| inverted image | An image formed by the convergence of the actual rays of light from an object. Synonym: inverted image. (05 Mar 2000) |
| inverted microscope | <instrument, microscopy> A microscope so arranged that the line of sight is directed upward through the objective to the object. (05 Aug 1998) |
| inverted nipple | The turning inward of the nipple. Usually a congenital condition, but, if it occurs where it has not previously existed, it can be a sign of breast cancer. (09 Oct 1997) |
| inverted papilloma | A mucosal tumour of the urinary bladder or nasal cavity in which proliferating epithelium is invaginated beneath the surface and is more smoothly rounded than in other papilloma's. (05 Mar 2000) |
| inverted pelvis | Split pelvis with separation at pubis. (05 Mar 2000) |
| inverted repeat | Either of two copies of a DNA sequence (such as those foundat oppositeends of a transposon) whichoccur in identical but inverted form. (09 Oct 1997) |
| lateral patellar retinaculum | Part of the aponeurosis of the vastus lateralis muscle passing lateral to the patella to attach to the tibial tuberosity. Synonym: retinaculum patellae laterale. (05 Mar 2000) |
| frostberg inverted-three sign | <radiology> Medial retraction of 2nd portion of duodenum, pancreatic carcinoma (less than10% of carcinoma's), acute pancreatitis, postbulbar ulcer disease (12 Dec 1998) |
| abdominocardiac reflex | Mechanical stimulation (usually distention) of abdominal viscera causing changes (usually a slowing) in the heart rate or the occurrence of extrasystoles. (05 Mar 2000) |
| Abrams' heart reflex | A contraction of the myocardium when the skin of the precordial region is irritated. (05 Mar 2000) |
| accommodation reflex | Increased convexity of the lens, due to contraction of the ciliary muscle and relaxation of the suspensory ligament, to maintain a distinct retinal image. (05 Mar 2000) |
| Achilles reflex | A contraction of the calf muscles when the tendo calcaneus is sharply struck. Synonym: ankle jerk, ankle reflex, tendo Achillis reflex, triceps surae reflex. (05 Mar 2000) |