WordReference Random House Unabridged Dictionary of American English © 2020
AEC, 
  • Government, See  Atomic Energy Commission. 

  • A.E.C., [Insurance.]
    1. Businessadditional extended coverage.

    Collins Concise English Dictionary © HarperCollins Publishers::
    AEC abbreviation for (in the US)
    1. Atomic Energy Commission
    'AEC' also found in these entries:
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