What does apportionment clause mean?

apportionment clause meaning in Law Dictionary

guideline in insurance coverage that states an insurance policy pays the claim within the quantity that they have insured the chance.

apportionment clause meaning in Business Dictionary

Provision in property insurance policies whereby (if more than one policy covers the same peril) each policy pays a claim in the same proportion as that policy is of the total of policies in force for that peril.