| fleischner sign | <radiology> Wide gap between thickened patulous ileocaecal valve and narrowed ulcerated terminal ileum, inverted umbrella defect, associated with tuberculous involvement of the ileocaecum (12 Dec 1998) |
|---|---|
| lambda sign | <radiology> Small ascending aorta: same size as right and left coronary aa., hypoplastic left heart syndrome (12 Dec 1998) |
| Lancisi's sign | <clinical sign> A large systolic jugular venous wave caused by tricuspid regurgitation replacing the normal negative systolic trough ("x" descent). (05 Mar 2000) |
| Landolfi's sign | <clinical sign> In aortic insufficiency, systolic contraction and diastolic dilation of the pupil. (05 Mar 2000) |
| football sign | <radiology> Large pneumoperitoneum outlining entire abdominal cavity, falciform ligament = cross threads (12 Dec 1998) |
| Forchheimer's sign | <clinical sign> The presence, in German measles, of a reddish maculopapular eruption on the soft palate. (05 Mar 2000) |
| Lasegue's sign | <clinical sign> When patient is supine with hip flexed, dorsiflexion of the ankle causing pain or muscle spasm in the posterior thigh indicates lumbar root or sciatic nerve irritation. (05 Mar 2000) |
| Fothergill's sign | <clinical sign> In rectus sheath haematoma, the haematoma produces a mass that does not cross the midline and remains palpable when the rectus muscle is tense. (05 Mar 2000) |
| Laugier's sign | <clinical sign> In fracture of the lower portion of the radius, the styloid processes of the radius and of the ulna are on the same level. (05 Mar 2000) |
| Friedreich's sign | <clinical sign> In adherent pericardium, sudden collapse of the previously distended veins of the neck at each diastole of the heart. (05 Mar 2000) |
| Froment's sign | <clinical sign> Flexion of the distal phalanx of the thumb when a sheet of paper is held between the thumb and index finger in ulnar nerve palsy. (05 Mar 2000) |
| Legendre's sign | <clinical sign> In facial hemiplegia of central origin, when the examiner raises the lids of the actively closed eyes the resistance is less on the affected side. (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) |
| Leichtenstern's sign | <clinical sign> Tapping gently one of the bones of the extremities causes the patient to draw back violently, sometimes with a loud cry; noted in cases of cerebrospinal meningitis. Synonym: Leichtenstern's phenomenon. (05 Mar 2000) |
| lemon sign | <radiology> Concave frontal bones, suggests neural tube defect also: banana sign (12 Dec 1998) |
| signal a. |
a method for minimizing noise interference in a periodic signal; the relative constancy of the signal intensity over time versus the randomness of noise is exploited by averaging the waveforms over a number of periods.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| signal n. |
an enlarged supraclavicular lymph node that is often the first sign of an abdominal tumor; called also sentinel n., Troisier's n., ganglion, or sign, and Virchow's n. or gland.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| signal p. |
signal sequence.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| signal s. |
a sequence of 15 to 30 amino acids occurring at the N-terminal of the precursors of secretory proteins; it is required for transport of the protein across the membrane of the rough endoplasmic reticulum into the cisternae, where it is immediately cleaved off by an endopeptidase. Called also leader s. and signal peptide.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| signal t. |
the process by which a cell receives and acts on some external chemical or physical signal, such as a hormone, including receiving the information at specific receptors in the plasma membrane, conveying the signal across the plasma membrane into the cell, and subsequently inducing an intracellular chain of other signalling molecules, thereby stimulating a specific cellular response.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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