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asphaltene

[ as-fawl-teen or, especially British, -fal- ]
/ æsˈfɔl tin or, especially British, -ˈfæl- /
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noun Chemistry.
any of the constituents of a bitumen, as asphalt, that are insoluble in pentane, hexane, or naphthalene.
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Origin of asphaltene

First recorded in 1830–40; asphalt + -ene
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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