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spironolactone

[spahy-ruh-noh-lak-tohn, spahy-roh-, -ron-uh-]
noun Pharmacology.
  1. a steroid, C24H32O4S, used in combination with other drugs as a diuretic and antihypertensive.
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Origin of spironolactone

1955–60; alteration of spirolactone; see spiro-2, lactone
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for spironolactone

spironolactone

noun
  1. a diuretic that increases water loss from the kidneys and is much used to treat oedema in heart and kidney failure
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Word Origin

C20: from spiro- ² + linking syllable -no- + lactone
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012