perylene

noun

per·​y·​lene

ˈperəˌlēn

plural -s

: a yellow crystalline aromatic hydrocarbon C₂₀H₁₂ that is constituted of two naphthalene residues joined to each other through the peri-positions, that is found in small amounts in coal tar, and that can be made from naphthalene by the action of aluminum chloride

Word History

Etymology

peri-di-naphthylene

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