extraction
gb/ɛkstɹˈækʃən/ us/ɛkstɹˈækʃən/
B2
Angličtina
~ 8700
Významy
0 významů
Podstatné jméno
B2
action
1
act of removing something
The act of taking something out from where it was before, often by pulling or separating it.
Vzorec užití:
the extraction of [something] from [something]
Častá chyba:
Learners sometimes confuse the noun "extraction" with the verb "extract" and say *"I will extraction the tooth"* instead of "I will extract the tooth" or "I will have a tooth extraction." Another common mistake is leaving out the preposition "of" and saying *"the extraction sugar from plants"* instead of "the extraction of sugar from plants."
Synonyma
removal (Most general; can be physical or abstract, not limited to pulling out.)
|
withdrawal (Emphasizes taking something away from use or from a place; often more formal.)
|
pulling out (More informal and physical; focuses on the forceful action.)
Antonyma
insertion (Opposite physical direction: putting something in instead of taking it out.)
|
addition (Opposite result: adding something rather than separating or removing it.)
Kolokace
tooth extraction
|oil extraction
|data extraction
|information extraction
|resource extraction
|wisdom tooth extraction
Témata
science
|technology
|medicine
|core_vocabulary
Příklady
- The dentist recommended extraction of the damaged tooth.
- Oil extraction from the seabed has raised environmental concerns.
- The software allows easy extraction of text from PDF files.
- Gold extraction from low-grade ore requires advanced technology.
- The report describes the extraction of key data from thousands of surveys.
Učební příklady
- I had a tooth extraction last year.
- Oil extraction can hurt the environment.
- The program helps with the extraction of data from old files.
- The company makes money from the extraction of gold from rock.
- The scientist studied the extraction of sugar from plants.
Podstatné jméno
formal
C1
entity
2
family or ethnic origin
Where a person's family comes from, especially their country, group, or social class, described in a formal way.
Vzorec užití:
of [nationality / social-class] extraction
Častá chyba:
Learners sometimes try to use "extraction" alone to mean "origin" (e.g. *"What is your extraction?"*), which sounds unnatural in modern English. It is normally used in the fixed formal pattern "of [X] extraction," as in "of French extraction" or "of humble extraction."
Synonyma
origin (Very close in meaning; more common and less formal in everyday English.)
|
background (Broad term for a person's past; includes more than just family or ethnic origin.)
|
heritage (Emphasizes cultural traditions and values passed down, not only where the family came from.)
Kolokace
of French extraction
|of Irish extraction
|of mixed extraction
|of humble extraction
|of noble extraction
Témata
society
|identity
|relationships
|core_vocabulary
Příklady
- She is of Italian extraction, though she was born in Canada.
- His grandfather, of humble extraction, worked in the coal mines.
- Many scientists of Jewish extraction fled Europe during the war.
- Despite his noble extraction, he lived a very simple life.
- The writer, of mixed Asian and European extraction, often explores identity in her novels.
Učební příklady
- My teacher is of German extraction.
- She is of humble extraction but is now very successful.
- He is of Irish extraction on his mother's side.
- They are of mixed extraction and speak several languages at home.
- The king was of royal extraction.
Podstatné jméno
technical
C1
action
3
chemical separation using solvent
In chemistry, a way to take one part out of a mixture by using a liquid that that part can dissolve in.
Vzorec užití:
[type of] extraction of [substance] from [mixture]
Častá chyba:
Learners sometimes treat this technical sense as completely different from the general meaning, but it is just a more specific type of removal. Another mistake is saying *"extraction with water and oil"* without naming which is the solvent and which is the phase; in technical writing, you should be precise (e.g. "extraction of X from the aqueous phase into the organic solvent").
Synonyma
separation (General term; does not specifically imply using a solvent as extraction does.)
|
leaching (A related process, often in mining, but not identical; more specific context than extraction.)
Antonyma
mixing (Opposite operation: combining substances instead of separating one out.)
Kolokace
solvent extraction
|liquid-liquid extraction
|metal extraction
|supercritical CO2 extraction
|protein extraction
|sample extraction
Témata
science
|chemistry
|engineering
Příklady
- Solvent extraction was used to separate the metal ions from the waste solution.
- Liquid-liquid extraction can efficiently isolate caffeine from coffee beans.
- The lab protocol describes the extraction of DNA from blood samples.
- The plant specializes in uranium extraction from processed ore.
- Sample preparation involves an extraction step followed by chromatographic analysis.
Učební příklady
- We did an extraction of caffeine in chemistry class.
- The scientist used solvent extraction to clean the sample.
- Extraction of DNA is the first step in this experiment.
- Liquid-liquid extraction can move a chemical from water into another liquid.
- Metal extraction from ore is important for industry.
Gramatika
Slovníkový tvar
extraction
IPA
GB/ɛkstɹˈækʃən/
US/ɛkstɹˈækʃən/
Slabiky a přízvuk
ex - trac - tion (3 slabiky)
Stress on 2nd syllable (trac)
Tvary slova
Noun
- Base: extraction
- Plural: extraction, extractions
Příbuzná slova
Forms
extractions
noun
Core family
extract
verb B2
Related words
extractor
noun
extractable
adjective
Advanced or less common
extractive
adjective
Výrazy
of French extraction
1/əv fɹˈɛnt͡ʃ ɛkstɹˈækʃən/
fixed phrase
formal
having French family origins
Having family roots or ancestors from France.
Příklady
- His grandparents were of French extraction, though the family later moved to Canada.
- She is of French extraction on her mother's side.
- Several ministers, many of French extraction, supported the policy.
of humble extraction
1/əv hˈʌmbəl ɛkstɹˈækʃən/
fixed phrase
formal
from a low social background
Coming from a poor or low social-class family, said in a formal way.
Příklady
- Born of humble extraction, she rose to become a leading politician.
- The hero, of humble extraction, struggles against the rigid class system.
- Many leaders of humble extraction used education to change their lives.
tooth extraction
1/tˈuθ ɛkstɹˈækʃən/
fixed phrase
dental removal of a tooth
the act of taking a tooth out of someone’s mouth, usually done by a dentist
Příklady
- The dentist said I might need a tooth extraction.
- The dentist said a tooth extraction was the only option.
- He was nervous about his upcoming tooth extraction.
- I was nervous about my wisdom tooth extraction next week.
- After the tooth extraction, you should eat only soft food.
- After the tooth extraction, you should not eat hard food for a few days.