ETYM Pref. ad- + renal.
1. Near the kidneys.
2. Of or pertaining to the adrenal glands or their secretions.
Close to kidney; suprarenal, especially applied to ductless glands above kidneys.

Množina: adrenal cortices

The cortex of the adrenal gland; secretes corticosterone and sex hormones.

Množina: adrenal glands

Or suprarenal gland; Triangular gland situated on top of the kidney. The adrenals are soft and yellow, and consist of two parts: the cortex and medulla. The cortex (outer part) secretes various steroid hormones, controls salt and water metabolism, and regulates the use of carbohydrates, proteins, and fats. The medulla (inner part) secretes the hormones adrenaline and noradrenaline which, during times of stress, cause the heart to beat faster and harder, increase blood flow to the heart and muscle cells, and dilate airways in the lungs, thereby delivering more oxygen to cells throughout the body and in general preparing the body for “fight or flight”.
Either of a pair of complex endocrine glands situated near the kidney; SYN. adrenal, suprarenal gland.

Množina: adrenalectomies

Surgical removal of one or both adrenal glands; SYN. suprarenalectomy.

Množina: adrenalins

A catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action

Množina: adrenalines

Or epinephrine; Hormone secreted by the medulla of the adrenal glands.
Adrenaline's action on the liver raises blood-sugar levels by stimulating glucose production; it also increases the heart rate, raises blood fatty-acid levels by its action on adipose tissue, and constricts and dilates blood vessels selectively.
Hormone of adrenal gland; preparation from such secretion or synthetic drug used as hemostatic and heart stimulant.A hormone secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action; SYN. epinephrine, epinephrin, Adrenalin.