Definition of Abortion, recurrent

Abortion, recurrent: The occurrence of 3 or more miscarriages (which are medically termed "spontaneous abortions") with no intervening
pregnancies.
Recurrent abortion (or, as it is sometimes called, habitual
abortion) is a form of infertility. It may be due to chromosome abnormalities.

Definition of Abortion, habitual

Abortion, habitual: The miscarriage of 3 or more consecutive pregnancies. The abortion of 3 or more
miscarriages (spontaneous abortions) with no intervening pregnancies is also termed recurrent abortion.
Habitual or recurrent abortion is a form of infertility. It is sometimes due to chromosome abnormalities or other genetic causes.