extractionex‧trac‧tion /ɪkˈstrækʃən/ AWL noun 
- Dentists will only resort to extraction of a tooth when all other treatments have failed.
- The protesters are opposed to the extraction of minerals in the area.
- A final chapter describes the standardization of single and sequential extraction procedures and certification of soil and sediment reference materials.
- Heavy with child I come to ask for an extraction.
- I didn't like having my teeth drilled but extractions were infinitely worse.
- La Chevardière himself was of noble extraction, and supplied scores to highly-placed aristocrats.
- Recorded conversations can either be analyzed for relevant communications in situ or transported to an information extraction facility.
- Silicone lubricant enhances recovery of nucleic acids after phenol-chloroform extraction Phenol-chloroform extraction is a major step in the purification of nucleic acids.
- The three pellets previously mentioned were found in the gall of the Saint at the time of the extraction of her heart.
- This is practical, useful information, since it makes extraction of these gases relatively easy.
the process of removing something► removal: removal of · Treatment usually consists of removal of the tumour combined with drug treatment.· Removal of the brake pads is a simple operation which can be done with a few basic tools.
► extraction the process of removing a natural substance from the ground or from a plant, or removing a tooth from someone's body: extraction of: · The protesters are opposed to the extraction of minerals in the area.· Dentists will only resort to extraction of a tooth when all other treatments have failed.
► mineral/oil etc extractionADJECTIVE► mineral· The line was once a mineral extraction route constructed mainly for coal mining in the area.· Snowdonia, where the evidence of centuries of quarrying and mineral extraction is heaped everywhere.
► solvent· The equilibria in the first part deal with complexation, solubility, redox reactions, and solvent extraction and ion exchange.· Two of the most important are liquid-phase chromatography and solvent extraction.
NOUN► oil· Tekhne has developed an automated gas from oil extraction system.· Propane-rich fuels come mainly from oil extraction and refining, and can be burnt either in spark-ignition motors or dual-fuel units.
► peat· Much of this is threatened, principally by peat extraction for use as compost in gardening and horticulture.· The deal has angered environmentalists, who want a complete ban on peat extraction.
► process· The oxygen extraction process may then become wholly independent of resupply from Earth.
► signal· She faces what is known as a signal extraction problem.· This is the signal extraction problem.· Workers face the signal extraction problem of deciding whether the increase in real wages is transitory or lasting.
► stone· The approach enables larger cannulae to be used for easier stone extraction, however, and avoids unnecessary trauma to the liver.· One patient was managed endoscopically with stone extraction and another by cholecystectomy and duct exploration.
VERB► use· The approach enables larger cannulae to be used for easier stone extraction, however, and avoids unnecessary trauma to the liver.· Samples for sediment chemistry were prepared using a wet-chemical extraction technique.· Platelet activating factor was extracted from biopsies using ethanolic extraction as previously reported by us and others.
nounextractionextractverbextract
the extraction of salt from seawater