chromaffin

/ˈkroʊməfɪn/
adjective
  1. Relating to cells that stain darkly with chromium salts, especially those in the adrenal medulla that produce adrenaline.
    • Doctors studied the chromaffin reaction to diagnose the condition.
    • The tumor originated in chromaffin tissue of the adrenal gland.
    • Chromaffin cells release epinephrine during stress.
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