Meaning of “bone marrow” in the English Dictionary

american-english dictionary

"bone marrow" in British English

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bone marrownoun [ U ]

uk /ˈbəʊn ˌmær.əʊ/ us /ˈboʊn ˌmær.oʊ/

→  marrow

(Definition of “bone marrow” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"bone marrow" in American English

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marrow:

A bone marrow transplant can be risky.

(Definition of “bone marrow” from the Cambridge Academic Content Dictionary © Cambridge University Press)