We found one dictionary that defines the word polycyclic hydrocarbon:

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1. polycyclic hydrocarbon: Encyclopedia

Phrases: Polycyclic aromatic hydrocarbon, more... ▸ Words similar to polycyclic hydrocarbon ▸ Usage examples for polycyclic hydrocarbon ▸ Idioms related to polycyclic hydrocarbon ▸ Wikipedia articles (New!) ▸ Words that often appear near polycyclic hydrocarbon ▸ Rhymes of polycyclic hydrocarbon ▸ Invented words related to polycyclic hydrocarbon