荻おぎ野の学がく説せつ

noun

Ogino theory; rhythm method basis

Refers to the fertility-awareness theory developed by Kyusaku Ogino, which forms the basis of the rhythm method of contraception.

• 荻おぎ野の学がく説せつは、排はい卵らん日びを推すい定ていする方ほう法ほうとして知しられている。

  The Ogino theory is known as a method for estimating the day of ovulation.