Definition of "breeding-ground" []

• A place or region where animals go to breed. (noun)
• A place or institution seen as creating large numbers of a stated thing, type of person, etc. (noun)

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• "Over the years, the war itself and later the occupation, were harshly criticized for actually creating a breeding-ground for fundamentalist groups in Iraq."
• "The Obama administration's raison d'etre for the Afghan occupation -- the purported dismantling of Al Qaeda and elimination of breeding-ground conditions for transnational militants -- is as self-defeating as it is abstruse, an assessment proven out by this past weekend's terror strike in Portland at the hands of a Somali-born operative who tried to blow up a Christmas tree lighting ceremony and, although mentionable, said attack's FBI inducement is a polemic for another day."
• "The terrain surrounding the group is long grass - prime breeding-ground for mosquitoes."