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adrenal gland

ad·re·nal gland

/əˈdrēnl gland/

Noun

The adrenal glands are part of the endocrine system, located above the kidneys. The right adrenal gland is triangular shaped, while the left adrenal gland is semilunar shaped. They are chiefly responsible for secreting the hormones norepinephrine and epinephrine in response to stress.