marrow
noun.
the fatty network of connective tissue that fills the cavities of bones
Synonym: bone marrow
noun.
any of various squash plants grown for their elongated fruit with smooth dark green skin and whitish flesh
noun.
very tender and very nutritious tissue from marrowbones
Synonym: bone marrow
noun.
large elongated squash with creamy to deep green skins
noun.
the choicest or most essential or most vital part of some idea or experience
the gist of the prosecutor's argument|the heart and soul of the Republican Party|the nub of the story