medulla of adrenal gland n.
Any of the anastomosing cords of cells located in the core of the adrenal gland that display a chromaffin reaction because of the presence of epinephrine and norepinephrine in their granules.
- Medulla of hair shaft
medulla of hair shaft n. The central axis of some hairs surrounded by the cortex.
- Medulla of kidney
medulla of kidney n. The inner darker portion of the parenchyma of the kidneys that consists of the renal pyramids.
- Medulla of lymph node
medulla of lymph node n. The central portion of a lymph node consisting of cordlike masses of lymphocytes separated by lymph sinuses.
[med-l-er-ee, mej-uh-ler-ee, muh-duhl-uh-ree] /ˈmɛd lˌɛr i, ˈmɛdʒ əˌlɛr i, məˈdʌl ə ri/ adjective 1. pertaining to, consisting of, or resembling the of an organ or the .