Other forms: vernacularized; vernacularizing; vernacularizes
To vernacularize is to say something in an ordinary, informal way, so that just about everyone can understand what you mean.
In order to explain something technical to a person who's not an expert, you need to vernacularize the information first. That means taking complicated or specialized words and phrases and translating them into everyday language. Instead of saying, "Your CBC came back indicating hyperlipidemia," a good doctor will vernacularize the message and say something like, "The blood test showed you've got high cholesterol." Vernacularize is from vernacular and its Latin root, which means "native."