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aryl group

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noun Chemistry.
  1. any organic group derived from an aromatic hydrocarbon by the removal of a hydrogen atom, as phenyl, C6H5−, from benzene, C6H6.
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Origin of aryl group

First recorded in 1905–10
Also called aryl radical.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018