indivision

noun | \ ˌin-də-ˈvi-zhən \ | in·di·vi·sion
  1. : a state of undivided wholeness : state of being owned by two or more co-owners each having an undivided interest in the property as a whole an estate held in indivision they receive this usufruct in indivision —Louisiana Civil Code — see also ownership in indivision at ownership