English Lexicon

Marrow

/ˈmær.oʊ/
nounCEFR C1 (Advanced)Top #8500 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A soft, fatty, vascular tissue filling the cavities of bones, important especially for the production of blood cells.

    "Bone marrow transplants can sometimes cure certain types of leukemia."
  2. 2

    The pith or inner core of certain plant stems, or a large, oblong green vegetable related to the squash.

    "He harvested a massive vegetable marrow from his garden patch."

Thesaurus & Semantic Spectrum

Synonyms (3)
Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Old English 'mearh', meaning marrow, which stems from Proto-Germanic *mazgaz. Over time, it evolved through Middle English 'marow' to designate both the soft fatty substance in the cavities of bones and the inner pith of certain plants.

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