marrow

  1. noun
    any of various squash plants grown for their elongated fruit with smooth dark green skin and whitish flesh
  2. noun
    very tender and very nutritious tissue from marrowbones
  3. noun
    large elongated squash with creamy to deep green skins
  4. 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"
  5. noun
    the fatty network of connective tissue that fills the cavities of bones