octachlorodibenzofuran

/AA1 K T AE1 K L AO1 R AH0 D AH0 B EH1 N Z AH0 F Y UW1 R AH0 N/
noun
  1. 1

    (organic chemistry) The toxic perchloro derivative of dibenzofuran 1,2,3,4,6,7,8,9-octachlorodibenzofuran