Defense Enrollment Eligibility Record System

De·fense En·roll·ment El·i·gi·bil·i·ty Re·cord System

(DEERS) (dĕ-fens' en-rōl'mĕnt el'i-ji-bil'i-tē rek'ŏrd sis'tĕm) The system used by the U.S. military to determine coverage for insurance benefits.