degas
/di'gæs/
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Definition
- Verb:
- To remove gas from: The primary meaning of "degas" is to eliminate or extract gas from a substance, container, or system. This is a technical process often used in science, engineering, and manufacturing.
Usage
- Verb (transitive): The word is almost exclusively used as a transitive verb, meaning it requires a direct object (the thing from which gas is removed).
- Context: It is most commonly used in technical, scientific, or industrial contexts, such as chemistry, metallurgy, vacuum technology, and food processing.
Examples
- Verb:
- Before sealing the vacuum tube, you must degas the metal components to prevent internal pressure.
- The winemaker will degas the wine to remove excess carbon dioxide after fermentation.
- A crucial step in preparing the sample for electron microscopy is to degas it thoroughly.
Advanced Usage
- "Degassing" (Gerund/Noun): The process or act of removing gas.
- The degassing of the magma chamber led to a violent volcanic eruption.
- "Degassed" (Adjective/Past Participle): Describing a substance from which gas has been removed.
- Use only degassed water for this chemical experiment to avoid bubbles.
Variants and Related Words
- Degasser (Noun): A device or substance used to remove gas.
- The laboratory purchased a new ultrasonic degasser for their samples.
- Outgas (Verb): A related term meaning to release gas, especially from a material. "Degas" is the active process of removal, while "outgas" often describes a passive release.
- The new polymer may outgas volatile compounds over time.
Synonyms
- De-aerate: To remove air or gas.
- Purge: To rid of an unwanted substance, such as gas.
- Evacuate: To remove air or gas to create a vacuum.
Notes on Different Meanings
- Proper Noun (Degas): The word "Degas" (capitalized) is the surname of the famous French Impressionist painter Edgar Degas. This is a completely separate, homographic proper noun and is not the target verb "degas."
- Example: The museum is exhibiting several works by Degas.
- The verb "degas" is not used to form common idioms or phrasal verbs. Its usage is literal and technical.
Noun
- French impressionist painter (1834-1917)
Verb
- remove gas from