Also found in: Thesaurus, Medical, Encyclopedia.
Related to safe period: fertile period
(Medicine) informal the period during the menstrual cycle when conception is considered least likely to occur. See also rhythm method
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Switch to new thesaurus
|Noun||1.||safe period - that time during a woman's menstrual cycle during which conception is least likely to occur (usually immediately before of after menstruation)|
menstrual cycle - a recurring cycle (beginning at menarche and ending at menopause) in which the endometrial lining of the uterus prepares for pregnancy; if pregnancy does not occur the lining is shed at menstruation; "the average menstrual cycle is 28 days"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.