alkyl

On a hunch I dropped in an aluminum alkyl, and then pushed the polymerization along with both ultraviolet and heat.
The Professional Approach|Charles Leonard Harness
The influence of position of an alkyl in the aromatic bodies is well shown in ortho-, para- and meta-derivatives.
Poisons: Their Effects and Detection|Alexander Wynter Blyth
Hydrogen may be substituted in these chains by alkyl or aromatic groups.
Animal Proteins|Hugh Garner Bennett
We may also notice that thio-ethers combine with alkyl iodides to form sulphine or sulphonium compounds, R3SI.
Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1|Various

The potassium salt reacts with the alkyl iodides to give N-substituted alkyl derivatives.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3|Various

British Dictionary definitions for alkyl

alkyl

/ (ˈælkɪl) /

noun

(modifier) of, consisting of, or containing the monovalent group C n H 2 n +1alkyl group or radical

an organometallic compound, such as tetraethyl lead, containing an alkyl group bound to a metal atom

Word Origin for alkyl

C19: from German, from Alk (ohol) alcohol + -yl

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for alkyl

alkyl

[ ăl′kəl ]

A monovalent radical, such as ethyl or propyl, having the general formula CnH2n+1.

Scientific definitions for alkyl

alkyl

[ ăl′kəl ]

A radical that has the general formula CnH2n+1, formed by removing a hydrogen atom from an alkane. Ethyl and propyl are alkyls.