title: Oestrum
text: # Oestrum
  
  Oestrum may refer to:
  
  * Oestrum or Estrum, a phase in the estrous cycle
  * Oestrum (Duisburg) [de], a district of Duisburg, in North Rhine-Westphalia, Germany
  * Östrum, a village in Lower Saxony, Germany
  