METHANOL Meaning of METHANOL in English meth ‧ a ‧ nol /ˈmeθənɒl $ -nɒːl, -nɑːl/ BrE AmE noun [uncountable] [ Date: 1800-1900 ; Origin: methane ] a type of poisonous alcohol that can be made from wood Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012