acromion
Very lowTechnical / Medical
Definition
Meaning
The outermost point of the shoulder blade (scapula), forming the top of the shoulder and articulating with the clavicle.
The anatomical bony prominence of the scapula that projects from the spine of the scapula, serving as the attachment point for the deltoid and trapezius muscles and forming the acromioclavicular joint.
Linguistics
Semantic Notes
Term is almost exclusively used in medical, anatomical, and fitness contexts. It refers to a specific, singular anatomical structure, not a general area.
Dialectal Variation
British vs American Usage
Differences
Spelling and pronunciation are standard. No significant usage difference exists; term is identical in both technical registers.
Connotations
Purely anatomical with no cultural or connotative variation between regions.
Frequency
Equally rare in both UK and US outside specialized fields.
Vocabulary
Collocations
Grammar
Valency Patterns
[injury] to the acromion[pressure] on the acromionthe [fracture] involved the acromionVocabulary
Synonyms
Neutral
Weak
Usage
Context Usage
Business
Not used.
Academic
Used in medical, anatomical, physiotherapy, and sports science texts and lectures.
Everyday
Extremely rare; a doctor or physiotherapist might explain an injury using this term to a patient.
Technical
The primary context. Used in surgical reports, radiology, orthopaedics, anatomy atlases, and biomechanics.
Examples
By Part of Speech
adjective
British English
- The acromial region was tender to the touch.
- An acromial osteophyte was visible on the X-ray.
American English
- The acromial region was tender to palpation.
- An acromial spur was identified on the MRI.
Examples
By CEFR Level
- He fell and hurt the bone at the top of his shoulder.
- The surgeon explained that the fracture was located in the acromion, the bony tip of the shoulder blade.
- Impingement syndrome often occurs when the rotator cuff tendons are compressed against the undersurface of the acromion during arm elevation.
Learning
Memory Aids
Mnemonic
Think: A Crow on my shoulder. 'A-CROMI-on' sounds like a crow landed on the highest point of your shoulder, which is the acromion.
Conceptual Metaphor
THE SHOULDER AS A LANDMARK: The acromion is conceptualized as a 'point,' 'tip,' 'process,' or 'prominence'—a physical landmark for orientation and attachment.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'акромегалия' (acromegaly), a hormonal disorder.
- Do not confuse with 'акромион' (the direct loanword) – it's a cognate, but ensure correct spelling and anatomical specificity.
Common Mistakes
- Mispronouncing it as /ˈæk.rə.mi.ən/ (wrong stress).
- Using it as a general term for 'shoulder'.
- Confusing it with the 'coracoid process', another part of the scapula.
Practice
Quiz
The acromion articulates directly with which other bone?
FAQ
Frequently Asked Questions
No. The acromion is a specific, small bony part of the shoulder blade (scapula) that forms the top 'roof' of the shoulder joint.
Yes. It is the bony point you can feel at the very top of your shoulder, just behind the joint where your collarbone ends.
Acromion fractures are possible but less common than other shoulder fractures. More often, the acromion is involved in conditions like shoulder impingement or arthritis of the acromioclavicular joint.
Almost never. It is a highly specialized anatomical term. In everyday language, people say 'shoulder bone' or 'point of the shoulder'.