How to Pronounce Costal Margin
Definition, meaning, and phonetic spelling
Costal Margin Pronunciation
KOS-tal MAR-jin
Stressed syllable in ALL CAPS · hyphens separate syllables
Syllable Breakdown
KOS
stress here
tal MAR
jin
3 syllables
What is Costal Margin?
The lower curved edge of the rib cage, formed by the costal cartilages of ribs 7–10. This edge is felt as the lower boundary of the rib cage, and is the landmark used to measure liver size on physical examination.
Questions About Costal Margin
How do you pronounce 'costal margin'?
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Say it like this: KOS-tal MAR-jin. The first part rhymes with 'cost,' and the second part sounds like 'margin' in everyday English. The stress falls on the first syllable of each word: KOS-tal and MAR-jin.
What does 'costal' mean?
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'Costal' comes from the Latin word 'costa,' which means 'rib.' So whenever you see 'costal' in a medical term, it's referring to something related to the ribs.
What does 'margin' mean in medical terms?
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'Margin' simply means 'edge' or 'border.' In anatomy, it describes the outline or boundary of a structure. So 'costal margin' is literally the edge of the rib cage.
What is the plain English way to say 'costal margin'?
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You can call it the 'rib cage edge' or 'lower edge of the ribs.' It's the curved line you can feel along the bottom of your rib cage when you run your hand across your side.
How many syllables does 'costal margin' have?
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'Costal margin' has four syllables total: COS-tal MAR-jin. The stress naturally falls on the first syllable of each word (COS and MAR), not in the middle.
What is a common mispronunciation of 'costal'?
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Some people say 'COAST-al' (rhyming with 'coast'), but the correct way is 'KOS-tal' (rhyming with 'cost'). Remember: it comes from the Latin word for rib, not the English word 'coast.'
What other medical words use the root 'costal'?
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'Costal' appears in words like 'intercostal' (between the ribs) and 'costochondritis' (relating to ribs and cartilage). These all trace back to the same Latin root meaning 'rib.'
Can you use 'costal margin' in a sentence?
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Here's an example: 'The doctor used the costal margin as a landmark to feel where the rib cage ends.' This shows how the term is used in a medical or anatomical context.

