From Longman Dictionary of Contemporary Englishreinsurere‧in‧sure /ˌriːɪnˈʃʊə $ -ˈʃʊr/ verb [transitive] technical BFIto share the insurance of something between two or more companies, so that there is less risk for each —reinsurance noun [uncountable] —reinsurer noun [countable]→ See Verb tableFrom Longman Business Dictionaryreinsurere‧in‧sure /ˌriːɪnˈʃʊə-ˈʃʊr/ verb [transitive] INSURANCE to share the insurance of something between two or more insurance companies, so that there is less risk for each→ See Verb table