One entry found for bone marrow.

Main Entry: bone marrow
Function: noun
: a soft tissue rich in blood vessels that fills the cavities of most bones and occurs in two forms: a : one that is yellowish and fatty and is found especially in long bones (as the femur) b : one that is reddish, is the main place where blood cells are formed, and in adults is limited especially to certain flat or short bones (as the ribs)

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