delouse
C1Neutral, can be technical/medical in literal use; informal in metaphorical use.
Definition
Meaning
To remove lice or other parasitic insects from a person, animal, or object.
To remove unwanted, harmful, or parasitic elements from a system or environment (metaphorical usage).
Linguistics
Semantic Notes
The word is morphologically transparent: de- (remove) + louse. The metaphorical extension is common in computing (e.g., delousing code of malware/viruses) and organizational contexts.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning. Both use the same spelling.
Connotations
Both share the same connotations. Literal use may be seen as slightly technical or old-fashioned.
Frequency
Equally low frequency in both dialects. More likely encountered in historical, medical, veterinary, or IT security contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
[subject] delouses [object][object] gets delousedVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “No common idioms.”
Usage
Context Usage
Business
Rare. Could be used metaphorically: 'We need to delouse the contract of these exploitative clauses.'
Academic
Used in historical, medical, or biological texts describing hygiene or pest control.
Everyday
Uncommon in modern casual conversation, unless discussing pet care, historical scenarios, or computing.
Technical
Standard in veterinary medicine, public health, and IT security (metaphor for removing malware).
Examples
By Part of Speech
verb
British English
- The nurse had to delouse the new arrivals at the old infirmary.
- The IT team worked all night to delouse the infected server.
American English
- They had to delouse the dog after it got into a raccoon den.
- The first step is to delouse the software of any vulnerabilities.
adverb
British English
- No standard adverb form in use.
American English
- No standard adverb form in use.
adjective
British English
- No standard adjective form in use.
American English
- No standard adjective form in use.
Examples
By CEFR Level
- The vet helped us delouse our cat.
- They deloused the child's hair.
- After camping, we had to check and delouse all our gear.
- The soldiers were deloused upon entering the camp.
- Historical accounts describe how refugees were often deloused upon arrival to prevent typhus.
- The security consultant was hired to delouse the company's network of spyware.
- The new software update effectively deloused the operating system of a critical zero-day exploit.
- The metaphor of 'delousing' political institutions from corruption has been used by several reformers.
Learning
Memory Aids
Mnemonic
Think: 'DE-LOUSE' = to DE-LOUSE someone/something = to take the lice OFF. The prefix 'de-' means 'remove', attached to 'louse'.
Conceptual Metaphor
PARASITIC ENTITIES ARE LICE. (e.g., malware, corrupt officials, unfair contract terms). REMOVING THEM IS DELOUSING.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating as 'избавить от вшей' in metaphorical contexts; it sounds odd. Use a more general verb like 'очистить' (cleanse) or 'обеззаразить' (decontaminate).
Common Mistakes
- Confusing with 'de-lice' (non-standard). Using it as a noun (e.g., 'a delouse'). Incorrect stress: /ˈdiːlaʊs/ instead of /ˌdiːˈlaʊs/.
Practice
Quiz
In a modern IT context, what does 'delouse' most likely mean?
FAQ
Frequently Asked Questions
Literally, yes. It specifically means to remove lice (the parasitic insect). However, it is used metaphorically to refer to removing any unwanted parasitic element.
Yes. You can delouse a person, an animal, clothing, bedding, a room, or even data/system (metaphorically).
The process is 'delousing'. A person who does it is a 'delouser', though this is rare.
No. It is a low-frequency word. You will encounter it in specific contexts like history, veterinary care, or computing metaphors, but not in daily chit-chat.