Today's Word of the Day means...
hilum hi·lum (hī'ləm)n. pl. hi·la (-lə) A depression or slit-like opening through which nerves, ducts, or blood vessels enter and leave in an organ or a gland. Also called porta.
A mark or scar on a seed, such as a bean, showing where it was formerly attached to the plant. The hilum indicates the point of attachment of the funiculus.
A depression or opening through which nerves, ducts, or blood vessels pass in an organ or a gland, as in the medial aspect of the lungs or the kidneys .