para-dichlorobenzene


par•a-di•chlo•ro•ben•zene

(ˌpær ə daɪˌklɔr əˈbɛn zin, -bɛnˈzin, -ˌkloʊr-)

n. a white, crystalline, volatile solid, C6H4Cl2, of the benzene series: used chiefly as a moth repellent. [1875–80]