epinephrine: a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action
hormone: the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect
snowshoe: a device to help you walk on deep snow; a lightweight frame shaped like a racquet is strengthened with cross pieces and contains a network of thongs; one is worn on each foot