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.

---

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

---

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

---

Other Word Forms

Derived 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

Young women finishing school and establishing themselves before starting families isn’t a symptom of social decay, she says.

From The Wall Street Journal • Jun. 6, 2026

However, after treatment ended, symptom levels eventually became similar between the abatacept and placebo groups.

From Science Daily • Jun. 1, 2026

Whether this is intentional behavior born of the arrogance of power or a symptom of a deteriorating mental state is somewhat beside the point.

From Salon • May 26, 2026

We didn’t need to test the effectiveness of symptom relief.

From MarketWatch • May 12, 2026

In spite of their sadness—because of it, even; for their sadness was the symptom of their love for one another—the three young men were happy.

From "Brave New World" by Aldous Huxley

Related Words

• manifestation
• syndrome