[ mɛ'dʌlə ]
■ noun
1》 Anatomy a distinct inner region of an organ or tissue, especially a kidney, the adrenal gland, or hair.
2》 Botany the soft internal tissue or pith of a plant.
Derivatives
~ry adjective
Origin
ME (in the sense 'bone marrow'): from L., 'pith or marrow'.