extraction

7 definitions • 13 examples

the process of removing or obtaining something from somewhere, especially from under a surface or from inside something else:

extraction of The extraction of minerals has damaged the countryside.

Oil extraction began here 50 years ago.

DNA extraction was performed on the sample.

the process of removing a tooth:

She had two extractions.

The vet explained that the extraction would be done under anaesthetic.

the process of removing people or things from an area as part of a military operation:

extraction of The US military played a key role in the extraction of the hostages.

He embedded with the unit several times, including during emergency extractions of soldiers during battle.

The helicopter units provide close air support and team extraction.

to be from a family that originally came from a particular place, or from a particular type of family:

Paul, a carpenter of Dutch extraction, became our leader.

the process of removing or taking out something:

[ C ] a tooth extraction

If you say that a person is of a particular extraction, you mean that the person originally came from the stated nation or country:

[ U ] She is of Korean extraction.

the process of removing a substance from the ground or from another substance:

The local economy is overwhelmingly dependent on oil and gas extraction.

Hard-rock mining refers to the excavation and extraction of hard minerals such as those containing metals such as gold, or gems such as diamonds.