DuckCorp Dico

Found one definition

1.                 From German - English Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   MEA /mˈeːɑː/ <fem, n, sg>
    [techn.] MEA <n>
            Note: membrane electrode assembly
            Note: Elektrode-Membran-Einheit