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| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| a fool or simpleton; ninny. |
adrenal gland n.
Either of two small, dissimilarly shaped endocrine glands, one located above each kidney, consisting of the cortex, which secretes several steroid hormones, and the medulla, which secretes epinephrine. Also called epinephros, paranephros, suprarenal gland.
adrenal gland (ə-drē'nəl) Pronunciation Key
(click for larger image in new window) Either of two small endocrine glands, one located above each kidney. The outer portion, or cortex, secretes steroid hormones (corticosteroids). The inner portion, or medulla, secretes epinephrine and norepinephrine. |
Two small glands, one located near the upper part of each kidney, that function in the endocrine system. Part of each adrenal gland secretes adrenaline; another part secretes other important hormones.