| tolyl | <chemistry> The hydrocarbon radical, CH3.C6H4, regarded as characteristic of certain compounds of the aromatic series related to toluene; as, tolyl carbinol. Origin: Toluic + -yl. Source: Websters Dictionary (01 Mar 1998) |
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| tolylene | <chemistry> A hydrocarbon radical, C6H4.(CH2)2, regarded as characteristic of certain toluene derivatives. Source: Websters Dictionary (01 Mar 1998) |