The word "驯化" is formed by combining the character "驯", meaning to tame or domesticate, which itself incorporates the semantic radical "马" (horse) to indicate relation to animals, with the character "化", meaning to change or transform, derived from components representing alteration. Together, they create a compound where "驯" conveys the action of taming and "化" adds the sense of transformation, resulting in a term that denotes the process of domesticating wild animals.