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 (sĭm′təm, sĭmp′-)
1. An indication of a disorder or disease, especially a subjective one such as pain, nausea, or weakness.
2. A characteristic sign or indication of the existence of something else: drought and erratic rainfall as symptoms of climate change.

[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.]

symp′tom·less adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.symptomless - having no symptoms of illness or disease
well - in good health especially after having suffered illness or injury; "appears to be entirely well"; "the wound is nearly well"; "a well man"; "I think I'm well; at least I feel well"
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References in periodicals archive ?
Often symptomless in its early stages, glaucoma is the leading cause of irreversible sight loss.
Often symptomless in its early stages, glaucoma is one of the leading causes of irreversible sight loss.
The serious eye condition is often symptomless in its early stages, and one of the leading causes of irreversible sight loss.
SLE is characterized by alternating periods of active attacks during which symptoms are present, and remissions or symptomless periods.
The pharmaceutical firm insisted that an estimate of only one in 800 of all dengue infections, including symptomless infections, could lead to a severe infection.
A transmitted by the tiny trichomo's often symptomless women can itching, soreness discharge.
Quite often, the early changes in osteoarthritis are symptomless, so it's a good idea to embark on a lifelong programme, certainly from your 20s onwards, of looking after your joints.
Prostate cancer is often symptomless in the early stages when it is most treatable, which is why awareness of risk is so crucial.
However, the advice remains the same, if you were symptomless, then 1 month of condom use after your return will be enough to mitigate the risk of infection to a sexual partner, and 6 months after return for those who have symptoms.
The only other type of avian influenza detected in the United States since 2004 is low pathogenic avian influenza (LPAI)--an often symptomless disease that the United States is able to find because it maintains a state-of-the-art surveillance system to detect animal diseases.
Older adults who experience migraine headaches may be more likely to suffer silent brain injuries, which are symptomless risk factors for future strokes.