Meaning of the word marrow in English

What does marrow mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

marrow

US /ˈmer.oʊ/
UK /ˈmer.oʊ/
"marrow" picture

Noun

1.

a soft fatty substance in the cavities of bones, in which blood cells are produced

Example:
Bone marrow is essential for producing blood cells.
A bone marrow transplant can save lives.
Synonym:
2.

the essential part of something

Example:
He got to the marrow of the problem quickly.
The book explores the very marrow of human existence.
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