defibrillator
LowTechnical/Medical
Definition
Meaning
A medical device that delivers an electric shock to the heart to restore normal rhythm during cardiac arrest.
Any device or system designed to stop uncontrolled electrical activity in muscle tissue, though primarily used for cardiac applications. In figurative use, can refer to something that revitalizes or re-energizes a failing system.
Linguistics
Semantic Notes
The term combines 'de-' (reverse) + 'fibrillation' (uncoordinated contraction of muscle fibers). It refers specifically to the device, while 'defibrillation' is the procedure.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Both use 'defibrillator' identically.
Connotations
Same medical emergency connotations in both varieties.
Frequency
Similar frequency in medical contexts; slightly more public awareness in UK due to widespread public access AED (Automated External Defibrillator) campaigns.
Vocabulary
Collocations
Grammar
Valency Patterns
[subject] used a defibrillator on [patient][subject] applied the defibrillatorThe defibrillator was deployedVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “[Not applicable for this technical term]”
Usage
Context Usage
Business
Rare. Might appear in workplace safety manuals or first-aid procurement discussions.
Academic
Common in medical, nursing, paramedic, and public health literature and courses.
Everyday
Increasingly common in public safety discussions, first-aid training, and news reports about cardiac events.
Technical
Core term in cardiology, emergency medicine, biomedical engineering, and first responder protocols.
Examples
By Part of Speech
verb
British English
- The paramedics needed to defibrillate the patient twice.
- They trained to safely defibrillate a casualty.
American English
- The EMTs defibrillated the victim immediately.
- The protocol is to defibrillate as soon as possible.
adverb
British English
- [Not standardly derived]
American English
- [Not standardly derived]
adjective
British English
- The defibrillator pads were expired.
- We checked the defibrillator cabinet.
American English
- The defibrillator shock was delivered.
- He reviewed the defibrillator logs.
Examples
By CEFR Level
- This is a defibrillator. It can help a person whose heart has stopped.
- Many public buildings now have a defibrillator on the wall in case of emergency.
- The automated external defibrillator (AED) gives voice instructions so anyone can use it in a crisis.
- Despite rapid defibrillation with a biphasic defibrillator, the patient's refractory ventricular fibrillation persisted.
Learning
Memory Aids
Mnemonic
Think 'DE-FIBRILL-ATOR': DE-stops the FIBRILL-ation (quivering) of the heart. It's an -ATOR (machine) that does this.
Conceptual Metaphor
A 'heart restart button' or 'electrical reset for the heart'.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid calquing as 'дефибриллятор' without verifying context, though it is the direct loanword. Confusion can arise with 'электрошокер' (stun gun) which is not medical.
Common Mistakes
- Mispronunciation: /ˈdɛfɪbrɪleɪtə/ (stress on first syllable).
- Confusing 'defibrillator' (device) with 'defibrillation' (procedure).
- Using it as a verb ('to defibrillator someone') instead of 'to defibrillate'.
Practice
Quiz
What is the primary function of a defibrillator?
FAQ
Frequently Asked Questions
No. A defibrillator is used to stop a chaotic, unproductive rhythm (like ventricular fibrillation) and allow the heart's natural pacemaker to resume normal rhythm. It is not for a heart that is in 'asystole' (flatline).
An AED (Automated External Defibrillator) is a type of defibrillator designed for use by laypersons. It automatically analyzes the heart rhythm and instructs the user if a shock is needed. 'Defibrillator' is the general term, which also includes manual models used by healthcare professionals.
Modern public-access AEDs are designed to be safe. They will only advise and allow a shock if their sensors detect a 'shockable' rhythm like ventricular fibrillation. You cannot accidentally shock someone with a normal heartbeat using an AED.
The difference between British /diːˈfɪbrɪleɪtə/ and American /diˈfɪbrəˌleɪtər/ reflects general accent patterns: British English often has clearer secondary vowels and a longer first vowel, while American English features more vowel reduction (schwa /ə/) in unstressed syllables.