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Definition of defibrillator

defibrillator

/diːˈfɪb.rəˌleɪ.tɚ/
de · fib · ril · la · tor
Plural:defibrillators
•
Adjective:defibrillatory
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defibrillator Lexical Profile

defibrillator Game Scores & Validity

• noun

1

A medical device that delivers an electric current to the heart in order to halt life-threatening arrhythmias, such as ventricular fibrillation, and restore a normal heartbeat.

Example

"The flight attendant immediately retrieved the automated external defibrillator when the passenger collapsed in the aisle."

Synonyms
View all synonyms for defibrillator

• Nearby Words

defiance
defiant
defiantly
defibrillator
deficiency
deficient
deficiently

Word Origin & Etymology

Coined in the mid-20th century, derived from the prefix 'de-' (reversing), 'fibrillation' (a rapid, irregular heartbeat, from Latin 'fibrilla' meaning small fiber), and the suffix '-or' indicating a device.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Defibrillator. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/defibrillator
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