| drawer sign | <clinical sign> In a knee examination, the forward or backward sliding of the tibia indicating laxity or tear of the anterior (forward slide) or posterior (backward slide) cruciate ligaments of the knee. Synonym: drawer test, Rocher's sign. (05 Mar 2000) |
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| drooping lily sign | <radiology> Appearance of renal pelvis with duplicated collecting system, upper pole moiety obstructs, becomes hydronephrotic, most likely to be compresses lower-pole moiety and pushes it downward see also: Weigert-Meyer rule (12 Dec 1998) |
| Drummond's sign | <clinical sign> In certain cases of aortic aneurysm, a puffing sound, synchronous with cardiac systole, heard from the nostrils, when the mouth is closed. (05 Mar 2000) |
| Duchenne's sign | <clinical sign> Falling in of the epigastrium during inspiration in paralysis of the diaphragm. (05 Mar 2000) |
| Dupuytren's sign | <clinical sign> In congenital dislocation, free up and down movement of the head of the femur occurs upon intermittent traction, a crackling sensation on pressure over the bone in certain cases of sarcoma. (05 Mar 2000) |
| Duroziez' sign | A two-phase murmur over peripheral arteries, especially the femoral artery, due to rapid ebb and flow of blood during aortic insufficiency. Synonym: Duroziez' sign. (05 Mar 2000) |
| Quant's sign | <clinical sign> A T-shaped depression in the occipital bone occurring in many cases of rickets, especially in infants lying constantly in bed with pressure on the occiput. (05 Mar 2000) |
| Quenu-Muret sign | <clinical sign> In aneurysm, well-maintained collateral circulation indicated by issue of blood when the main artery of the limb is compressed and a puncture is made at the periphery. (05 Mar 2000) |
| Quincke's sign | The capillary pulse as appreciated in the finger and toenails during aortic regurgitation; ebb and flow is seen. Synonym: Quincke's sign. (05 Mar 2000) |
| inferior triangle sign | In chest radiology, lateral displacement of the diaphragmatic pleura near the diaphragm, associated with collapse of the upper lobe, usually on the right side. (05 Mar 2000) |
| objective sign | <clinical sign> A sign that is evident to the examiner. (05 Mar 2000) |
| optic sign | <microscopy> For uniaxial materials, by definition, the sign is positive if the value epsilon minus omega is positive, and negative if epsilon - omega is negative. For biaxial materials, the sign is positive if gamma is the acute bisectrix, and negative if alpha is the acute bisectrix, or positive if gamma - beta greater than beta - alpha and negative if gamma - beta less than beta - alpha (05 Aug 1998) |
| Osler's sign | <clinical sign> In acute bacterial endocarditis, circumscribed painful erythematous swellings, ranging in size from that of a pinhead to that of a pea, in the skin and subcutaneous tissues of the hands and feet. (05 Mar 2000) |
| ten Horn's sign | <clinical sign> Pain caused by gentle traction on the right spermatic cord, indicative of appendicitis. (05 Mar 2000) |
| terry thomas sign | <radiology> A gap between the scaphoid and the lunate bones suggesting a rupture of the scapho-lunate ligament (12 Dec 1998) |