1. Add a methyl group to a compound
   "They methylated the alcohol to produce an ether"
    
2. Add methanol to (a substance) to make it unfit for consumption
   "The government methylated industrial alcohol to prevent its use as a beverage"

1. A compound formed by replacing the hydroxyl hydrogen in methanol with a metal
   "Sodium methylate is commonly used as a strong base in organic synthesis"

Derived forms: methylated, methylating, methylates

Encyclopedia: Methylate