mixology is incorrectly written, and should be written as "Mixology" being its meaning: It is the art of making nice mixes on the palate, usually used by bartender and mixologists. Mixology is a branch of specialty that innovating and transcend the limits of the conventional cocktail.
It is the art of the cocktail, i.e. the art of making cocktails, specialty drinks created with mixtures of liqueurs. It is a term that, in Spain, is not recognized by the Royal Academy of the language, being used in countries such as Mexico.