chest compression: meaning, definition, pronunciation and examples
B2Technical / Medical
Quick answer
What does “chest compression” mean?
The physical act of repeatedly pressing down on a person's chest to manually pump blood through the heart during cardiac arrest or similar medical emergency.
Audio
Pronunciation
Definition
Meaning and Definition
The physical act of repeatedly pressing down on a person's chest to manually pump blood through the heart during cardiac arrest or similar medical emergency.
While primarily a medical term, it can also refer to the application of pressure or squeezing force to the chest area in non-medical contexts (e.g., certain athletic training or diagnostic equipment). The term fundamentally describes a compressive force applied to the thorax.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Both use the same term. Minor potential differences in phrasing: "Give chest compressions" (more common in US/UK) vs "Perform chest compressions" (also common in both). Terminology for the related procedure is standardised as CPR (Cardiopulmonary Resuscitation) globally.
Connotations
Identical. Carries strong, unambiguous connotations of emergency medical intervention and first aid.
Frequency
Identical frequency in medical/health contexts. It is a low-frequency term in general discourse but a high-frequency term within first aid training, emergency medicine, and public health campaigns.
Grammar
How to Use “chest compression” in a Sentence
perform chest compressions on + [PERSON/OBJECT]give + [NUMBER] chest compressions to + [PERSON]the + [ADJECTIVE] + chest compressions + [VERB] (e.g., the continuous chest compressions saved his life)Vocabulary
Collocations
Examples
Examples of “chest compression” in a Sentence
verb
British English
- The paramedic instructed the bystander to compress the casualty's chest firmly.
- You need to compress the chest by at least 5 centimetres.
American English
- The lifeguard began to compress the swimmer's chest rhythmically.
- Compress the chest hard and fast in the center.
adverb
British English
- He pressed down compressionally on the sternum. (Very rare/technical)
- The device acts compressionally on the thorax. (Very rare/technical)
American English
- (Adverbial use is exceedingly rare; 'rhythmically' or 'firmly' are used instead to describe the action)
adjective
British English
- The compression rate is crucial for effective CPR.
- He demonstrated the correct compression technique.
American English
- Maintain a consistent compression depth.
- The compression-only CPR method is often taught to the public.
Usage
Meaning in Context
Business
Extremely rare. Could appear in workplace safety manuals or first-aid training materials for staff.
Academic
Common in medical, nursing, and public health journals, textbooks, and research papers on resuscitation science.
Everyday
Common in public health information, first aid courses, news reports about emergencies, and basic life-saving instructions.
Technical
The primary context. Standard term in emergency medicine, paramedicine, CPR guidelines (e.g., from the American Heart Association or UK Resuscitation Council), and medical device documentation.
Vocabulary
Synonyms of “chest compression”
Strong
Neutral
Weak
Vocabulary
Antonyms of “chest compression”
Watch out
Common Mistakes When Using “chest compression”
- Pronouncing 'compression' with the stress on 'com' (/ˈkɒmprɛʃən/) instead of 'press' (/kəmˈprɛʃən/). Using it as a verb ("to chest compress" is incorrect; the verb is 'to compress the chest' or 'to perform compressions'). Confusing depth (how far to press) with rate (how fast to press).
FAQ
Frequently Asked Questions
No. Chest compressions are a key component of CPR (Cardiopulmonary Resuscitation). Full CPR combines chest compressions with rescue breaths. 'Hands-only' CPR refers to performing continuous chest compressions without rescue breaths, recommended for untrained bystanders.
For most adults, the recommended depth is at least 5 centimetres (2 inches) but not more than 6 centimetres (2.4 inches).
Yes, it is possible to cause rib fractures or internal injuries. However, for a person in cardiac arrest (unconscious and not breathing normally), the risk of not performing compressions (certain death) far outweighs the risk of injury. The guiding principle is 'doing something is better than doing nothing.'
The term 'compression' is more precise in a medical/mechanical context. It implies the application of a force that reduces the volume or changes the shape of an object (the chest cavity), which accurately describes the action of squeezing the heart between the sternum and spine to eject blood.
The physical act of repeatedly pressing down on a person's chest to manually pump blood through the heart during cardiac arrest or similar medical emergency.
Chest compression is usually technical / medical in register.
Chest compression: in British English it is pronounced /ˈtʃɛst kəmˌprɛʃən/, and in American English it is pronounced /ˈtʃɛst kəmˌprɛʃən/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “To push on someone's chest like there's no tomorrow (informal, descriptive, not a standard idiom).”
Learning
Memory Aids
Mnemonic
Imagine a COMPRESSOR pressing down: CHEST COMPRESSIONS are like a life-saving compressor for a stopped heart.
Conceptual Metaphor
THE HEART IS A PUMP (chest compressions are the manual priming of that pump). THE CHEST IS A BELLOWS (compressions force air/blood in and out).
Practice
Quiz
What is the primary purpose of chest compressions in CPR?