Definition of "erectile dysfunction" [erectile dysfunction]

• The inability to achieve penile erection or to maintain an erection until ejaculation. Also called impotence. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Hypertensive patients worry about which medications are safe to take, including erectile dysfunction (ED) drugs."