# clot

/ˈkɫɑt/ (US) · /klˈɒt/ (UK) · CEFR B2 · Noun

Source: https://englishreference.com/word/clot
Updated: 2026-05-07

## Definition

a thick, sticky lump that forms when a liquid like blood or milk becomes solid. You usually see this when you get a cut and the blood stops flowing.

For teachers: a semi-solid mass formed by the coagulation of a liquid, particularly blood or milk. In a medical context, it refers to a thrombus that can obstruct blood flow.

## Examples

- The blood formed a clot to stop the bleeding.
- Doctors are monitoring the patient to ensure that no blood clot moves toward the lungs after surgery.
- While the formation of a clot is a vital response to vascular injury, pathological coagulation within the arteries can lead to severe complications such as a stroke or myocardial infarction.

## Usage notes

- Often used with the verb 'form' or 'dissolve'.

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