The period in the menstrual cycle during which conception is most likely to occur, usually 10 to 18 days after the onset of menstruation.
10 Commonly Misused WordsRead more in this article about some frequently asked questions and fun facts related to our definitions.
Why Bluster Is Dictionary’s 2012 Word Of The YearYou may recall that last year we selected a rare word, a tongue-twister of sorts, as the 2011 Word of the Year: tergiversate which means “to change repeatedly one’s attitude or opinions with respect to a cause, subject, etc.; equivocate.” Rather than pick a word that rose to prominence through common usage during the year (like Occupy or Arab Spring), we selected a word hidden …
- fertile crescent,
- fertility cult,
- fertility drug
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.