Medical Dictionary


noun \ˈsīn\

Medical Definition of SIGN

:  one of a set of gestures used to represent language
:  an objective evidence of disease especially as observed and interpreted by the physician rather than by the patient or lay observer <narrow retinal vessels are a sign of arteriosclerosis>—see brudzinski sign, chvostek's sign, homans' sign, kernig sign, physical sign, placental sign, romberg's sign, tinel's sign, vital signs, von graefe's sign; compare symptom
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