11 letters · 12 points in Scrabble
noun a corticosteroid hormone that is secreted by the cortex of the adrenal gland; regulates salt (sodium and potassium) and water balance
originFrom aldo- (“related to aldehydes”) + -sterone, modelled on German Aldosteron; coined in the 1950s.
Etymology from Wiktionary, CC BY-SA 3.0