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Decompression: Definition, Examples, and Usage Guide (2 meaning)
Meaning 1：pressure reduction (decompression)
decompression
/ˌdiːkəmˈprɛʃən/
n.
The act of reducing air or water pressure, especially to help the body adjust safely.
pressure reduction
➕
/ˈprɛʃər rɪˈdʌkʃən/
n.
The process of decreasing air or water pressure, often used in diving and aviation to prevent injury.
📘 Details & Usage
📖 Root Explanation
de- (removal) + compress (to press together) + -ion (noun suffix).
💡 Mnemonic
De- like 'remove', compression like 'squeeze': decompression is removing the squeeze, whether from air or stress.
📖 Example
The pilot instructed the passengers on cabin decompression procedures in case of an emergency.
The pilot instructed the passengers on cabin decompression procedures in case of an emergency.
🔗 Collocations
decompression chamber – A sealed room where pressure can be gradually reduced to normal levels.
decompression sickness – A condition caused by rapid pressure change, leading to nitrogen bubbles in the blood.
decompression stop – A pause during ascent to allow the body to adjust to pressure changes.
🔄 Synonyms
depressurization (n.) – The act of reducing the pressure of a gas or liquid within a container.
pressure release (n.) – The process of allowing built-up pressure to escape.
expansion (n.) – An increase in volume caused by a decrease in external pressure.
🚫 Antonyms
compression (n.) – The act of applying pressure to reduce volume.
pressurization (n.) – The process of maintaining a higher pressure than the surrounding environment.
🌱 Derivatives
decompress (v.) – To reduce the pressure on or in something.
decompressed (adj.) – Having undergone decompression.
decompressive (adj.) – Relating to or causing decompression.
📖 Cultural Story
Etymology: from Latin 'de-' + 'compressio'. First used in 19th-century diving medicine for gradual pressure reduction to avoid decompression sickness. Extended to mental relaxation in the 20th century.
Meaning 2：mental relaxation (decompression)
decompression
/ˌdiːkəmˈprɛʃən/
n.
The process of relaxing and reducing mental stress after a period of hard work or pressure.
mental relaxation
➕
/ˈmɛntl ˌriːlækˈseɪʃən/
n.
The process of reducing mental or emotional pressure after a period of intense work or stress.
📘 Details & Usage
📖 Example
After finishing her final exams, she took a long walk in the park as a form of mental decompression.
After finishing her final exams, she took a long walk in the park as a form of mental decompression.
🔗 Collocations
mental decompression – The act of unwinding and reducing mental strain.
decompression time – A period set aside for relaxation after work or study.
need decompression – A state of requiring rest or stress relief.
🔄 Synonyms
relaxation (n.) – The state of being free from tension and anxiety.
unwinding (n.) – The process of releasing mental or physical tension.
stress relief (n.) – Activities that reduce mental or emotional pressure.
🚫 Antonyms
🌱 Derivatives
decompress (v.) – To relax and reduce stress.
decompressed (adj.) – Feeling relaxed after stress.
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