Definitions of methyl

1. the univalent radical CH3- derived from methane

2. A hydrocarbon radical, CH3, not existing alone but regarded as an essential residue of methane, and appearing as a component part of many derivatives; as, methyl alcohol, methyl ether, methyl amine, etc.

3. A presumed radical of wood spirit.

4. The hydro- carbon radical of methylic alcohol, being a colourless inflammable gas burning with a luminous flame.