symptom

American  

[simp-tuhm] / ˈsɪmp təm /

noun

1. any phenomenon or circumstance accompanying something and serving as evidence of it.

2. a sign or indication of something.

   Synonyms:

   mark, token, signal

3. Pathology. a phenomenon that arises from and accompanies a particular disease or disorder and serves as an indication of it.

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symptom British  

/ ˈsɪmptəm /

noun

1. med any sensation or change in bodily function experienced by a patient that is associated with a particular disease Compare sign

2. any phenomenon or circumstance accompanying something and regarded as evidence of its existence; indication

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symptom Scientific  

/ sĭm′təm /

1. A subjective indication of a disorder or disease, such as pain, nausea or weakness. Symptoms may be accompanied by objective signs of disease such as abnormal laboratory test results or findings during a physical examination.

2. Compare sign

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Other Word Forms

• presymptom noun
• symptomless adjective

Etymology

Origin of symptom

1350–1400; Middle English < Late Latin symptōma < Greek sýmptōma occurrence, that which falls together with something, equivalent to sym- sym- + ptō- (variant stem of píptein to fall) + -ma noun suffix of result

Explanation

A symptom is the result or byproduct of something else—specifically, the result we use to prove that that other thing exists. Simple example: a cough is a symptom of a cold. We know we have a cold because we have the symptom, a cough. Don't confuse the symptom with the cause. Even when the symptom is worse than the cause, don't be tempted to confuse them. Fever, sneezing, achiness: all of these are symptom of a cold. But they are not the cold. They are symptoms of it. Relationship experts argue over whether "cheating” is the cause of unhappiness or the symptom. In other words, do people think about breaking up because of cheating, or do they cheat because they're thinking about breaking up.

Example Sentences

The research team examined patients using a range of treatments, including Food and Drug Administration-approved IBS drugs, antidepressants, antispasmodics and opioid-based antidiarrheal medications such as loperamide and diphenoxylate, which are commonly recommended for symptom relief.

From Science Daily • Apr. 16, 2026

“Long-term care is both a symptom and a cause of the nation’s deepening wealth divide,” Forden said.

From MarketWatch • Apr. 14, 2026

The early melt is a symptom of global warming that scientists say is becoming more pronounced.

From Los Angeles Times • Apr. 1, 2026

“Major symptom signs” the Oura ring app warned.

From The Wall Street Journal • Mar. 29, 2026

I can only explain the scientific mania that overtook my father during that spring of ’59 as a symptom of the belief in progress that was infecting everyone back then.

From "Middlesex: A Novel" by Jeffrey Eugenides

Related Words

• manifestation
• syndrome