[{"Bold_text": "noun", "List Items": ["Anatomy.the marrow of the bones.the soft, marrowlike center of an organ, as the kidney or adrenal gland. medulla oblongata medulla oblongata.", "the marrow of the bones.", "the soft, marrowlike center of an organ, as the kidney or adrenal gland.", "medulla oblongata medulla oblongata.", "Botany.the pith of plants."]}]