marrow
//ˈmær.oʊ//
Noun
marrowSingular
marrowsPlural
1
The soft, fatty tissue found inside bones that produces blood cells.
Bone marrow produces red and white blood cells.
2
The essential or innermost part of something; the core or essence.
This issue cuts to the marrow of our society's values.
Noun
marrowSingular
marrowsPlural
1
A large, elongated green vegetable of the squash family, typically eaten cooked (British English).
My grandmother grows marrows in her garden every summer.