safe period

American  

noun

1. an interval of the menstrual cycle when fertilization is considered to be least likely, usually a number of days prior and subsequent to the onset of menstruation.

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safe period British  

noun

1. informal the period during the menstrual cycle when conception is considered least likely to occur See also rhythm method

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Etymology

Origin of safe period

First recorded in 1915–20

Example Sentences

Yet if the six church fires around the Southeast were all that occurred in recent days, it would prove a relatively safe period for houses of worship.

From US News

Outside of that safe period, you aren’t guaranteed coverage under federal law, though many states, including New York, extend greater protections.

From New York Times

And the third is when carers intentionally leave children in cars for what they think is a safe period of time, perhaps mistakenly thinking an open window will prevent tragedy.

From BBC

The safe period for the Cubs to bring up Rizzo from Triple-A and also control his rights for the most years comes this weekend.

From Chicago Tribune

The jurors and witnesses had assembled, over-taxing the hotel accommodation of the town, which the thoughtful lawyers and officials had reserved for themselves a safe period in advance.

From Project Gutenberg