# extraction

/ɛkˈstɹækʃən/ (US) · /ɛkstɹˈækʃən/ (UK)

Source: https://englishreference.com/word/extraction
Updated: 2026-06-20

## Senses

### 1. removal of a substance

noun · CEFR B2

the process of taking something out of a surface or a substance, like oil from the ground.

For teachers: the act of removing or obtaining something from a source by force, suction, or chemical process.

- The extraction of oil from the deep ocean floor is a difficult and expensive task.
- The mining company faced significant environmental regulations regarding the extraction of rare earth minerals from the protected valley.

### 2. ancestry

noun · CEFR C1 · Formal

a person's family background or where their ancestors came from.

For teachers: the ethnic or national origin of a person; lineage or ancestry.

- She is of Italian extraction, though she has lived in London her whole life.
- The historian noted that many families of French extraction settled in this region during the eighteenth century.

Usage: Usually follows the preposition 'of'.

### 3. military rescue

noun · CEFR B2 · Technical

the act of moving someone from a dangerous or enemy area to a safe place.

For teachers: the tactical removal of personnel from a hostile or hazardous environment to a secure location.

- The helicopter arrived just in time for the extraction of the trapped soldiers.
- The special forces team coordinated a night-time extraction to retrieve the diplomats before the border was closed.

Teaching tip: In a military context, this is the opposite of 'insertion'.

### 4. dentistry

noun · CEFR B2

the act of a dentist pulling a tooth out of your mouth.

For teachers: the surgical removal of a tooth from its socket in the jawbone.

- The dentist said that an extraction was necessary because the tooth was too damaged to fix.
- Following the extraction of his wisdom teeth, the patient was advised to avoid solid foods for several days.

## Examples

- The extraction of the injured soldiers took two hours.
- The special forces team planned a midnight extraction to rescue the hostages from the remote mountain camp.
- Successful extraction requires precise coordination between ground units and air support to ensure the safety of the team while operating under heavy fire in enemy territory.

---

From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.