symptom

Từ điển American Heritage Dictionary 4th

symp·tom (sĭmʹtəm, sĭmpʹ-)n.
1. A characteristic sign or indication of the existence of something else: “The affair is a symptom of a global marital disturbance; it is not the disturbance itself” (Maggie Scarf). See Synonyms at sign.
2. A sign or an indication of disorder or disease, especially when experienced by an individual as a change from normal function, sensation, or appearance. [Middle English sinthoma, symptom of a disease, from Medieval Latin sinthōma, from Late Latin symptōma, from Greek sumptōma, sumptōmat-, a happening, symptom of a disease, from sumpiptein, sumptō-, to coincide : sun-, syn- + piptein, to fall; See pet- in Indo-European Roots.] sympʹtom·less adj.