/ Dictionary / Index A aldosteronism: Meaning and Definition of Find definitions for: al•do•ster•on•ism Pronunciation: (al"dō-ster'u-niz"um, al-dos'tu-rō-), [key] — n. Pathol. an abnormality of the body's electrolyte balance, caused by excessive secretion of aldosterone by the adrenal cortex and characterized by hypertension, low serum potassium, excessive urination, and alkalosis. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: aldosteronism (Thesaurus) aldosterone Aldrich Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language