the fatty network of connective tissue that fills the cavities of bones;
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";
large elongated squash with creamy to deep green skins;
very tender and very nutritious tissue from marrowbones;
any of various squash plants grown for their elongated fruit with smooth dark green skin and whitish flesh;
