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meta-dichlorobenzene

American  
[met-uh-dahy-klawr-uh-ben-zeen, -ben-zeen, -klohr-] / ˈmɛt ə daɪˌklɔr əˈbɛn zin, -bɛnˈzin, -ˌkloʊr- /

noun

Chemistry.
  1. a colorless liquid, C 6 H 4 Cl 2 , soluble in alcohol and ether: used as a fumigant and insecticide.