bone marrow
noun
: a soft highly vascular modified connective tissue that occupies the cavities of most bones and occurs in two forms:
a
: one that is yellowish, consists chiefly of fat cells, and is found especially in the cavities of long bones
b
: one that is reddish, is the chief site of blood cell formation, and occurs in the normal adult in cancellous tissue especially of certain flat bones
called also red marrow
Examples of bone marrow in a Sentence
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This was with different bone marrow donors [of different ages].
—
Nicholas Stfleur, STAT, 6 May 2024
The treatment involves removing key immune cells from patients’ bone marrow and genetically modifying them to target a protein that is responsible for signaling the self-attack mode of immune cells.
—TIME, 2 May 2024
See all Example Sentences for bone marrow 
Nicholas Stfleur, STAT, 6 May 2024
The treatment involves removing key immune cells from patients’ bone marrow and genetically modifying them to target a protein that is responsible for signaling the self-attack mode of immune cells.
—TIME, 2 May 2024
See all Example Sentences for bone marrow
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'bone marrow.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Bone marrow.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bone%20marrow. Accessed 13 May. 2024.
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