spontaneous abortion spontaneous abortion /spɒnˈteɪniəs əˈbɔːrʃən/

noun

1. A natural loss of the products of conception  ( miscarriage , spontaneous abortion , stillbirth )
   a natural loss of the products of conception
    She had a miscarriage in her first pregnancy and was devastated
   She had a miscarriage in her first pregnancy and was devastated