Jisho

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こつずい 骨髄
Common word Wanikani level 55 Links
Noun, Noun which may take the genitive case particle 'no'
1. bone marrow; medulla​
Noun, Noun which may take the genitive case particle 'no'
2. true spirit; one's mind​
Wikipedia definition
3. Bone marrow​Bone marrow is the flexible tissue found in the interior of bones. In humans, bone marrow in large bones produces new blood cells. On average, bone marrow constitutes 4% of the total body mass of humans; in an adult weighing 65 kilograms (140 lb), bone marrow accounts for approximately 2.6 kilograms (5.7 lb).
Read “Bone marrow” on English Wikipedia
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Read “Bone marrow” on DBpedia

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