Marrow definition

mărō
The soft, vascular, fatty tissue that fills the cavities of most bones.
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Marrow is defined as an innermost, choice part, especially the fatty tissue inside bones.

An example of marrow is the substance in bones that can be donated to a sick person in need of a blood marrow transfusion.

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Bone marrow.
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The innermost, essential, or choicest part; pith.
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Vitality.
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(uncountable) The substance inside bones which produces blood cells.
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The inmost, choicest, or essential part; the pith.
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Strength or vigor; vitality.
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(countable) A kind of vegetable like a large courgette/zucchini or squash.
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The essence; the best part.
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(Scotland) One of a pair; a match; a companion; an intimate associate.
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(Geordie, informal) A friend, pal, buddy, mate.

Cheers marrow!

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The spinal cord.
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The spinal cord.
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The marrow squash.
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Bone marrow.
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Other Word Forms

Noun

Singular:
marrow
Plural:
marrows

Origin of marrow

  • Middle English marow from Old English mearg

    From American Heritage Dictionary of the English Language, 5th Edition

  • Middle English mary, marow, marowe, marowȝ, from Old English mearg, from Proto-Germanic *mazgą, *mazgaz, from Proto-Indo-European *mozgos. See Dutch merg and Russian мозг ("brain").

    From Wiktionary

  • From Old Norse margr.

    From Wiktionary