Definition of "miscarriage"

miscarriage

/ˈmɪskaɹɪd͡ʒ/

noun
countable and uncountable, plural miscarriages
1. (now rare except in miscarriage of justice) A failure; a mistake or error.
  Quotations
  for feare least blame / Of her miscarriage should in her be fond, / She wist not how t'amend, nor how it to withstond.
  1590, Edmund Spenser, “Book III, Canto II”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie
2. (medicine) The spontaneous natural termination of a pregnancy, especially before it is viable; the fatal expulsion of a foetus from the womb before term.