(n): a soft greasy substance occurring in organic tissue and consisting of a mixture of lipids (mostly triglycerides)
(n): lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata)
(n): a structure that is part of the nervous system
(n): the inner part of an organ or structure in plant or animal
(n): the tissue in the bodies of animals
(n): the tissue of a plant
