cyclopentadiene

American  

[sahy-kluh-pen-tuh-dahy-een, sik-luh-] / ˌsaɪ kləˌpɛn təˈdaɪ in, ˌsɪk lə- /

noun

1. a colorless liquid, C 5 H 6 , derived by the distillation of coal tar: used chiefly in the manufacture of insecticides and resins.

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cyclopentadiene British  

/ ˌsaɪkləʊˌpɛntəˈdaɪiːn /

noun

1. a colourless liquid unsaturated cyclic hydrocarbon obtained in the cracking of petroleum hydrocarbons and the distillation of coal tar: used in the manufacture of plastics and insecticides. Formula: C 5 H 6

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Etymology

Origin of cyclopentadiene

cyclo- + penta- + diene ( def. )

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