Do you get angry at people for calling sea stars starfish? "They aren't fish they are echinoderms!"
Or perhaps you get angry at people who call light utility vehicles "trucks"?
Language evolves. People accept colloquial definitions. Wait until you learn about pencil lead, koala bears, dry cleaning, and peanuts. Windmill is absolutely acceptable if it's understood by people to mean wind turbine, which it is.
Do you get angry at people for calling sea stars starfish? "They aren't fish they are echinoderms!"
Or perhaps you get angry at people who call light utility vehicles "trucks"?
Language evolves. People accept colloquial definitions. Wait until you learn about pencil lead, koala bears, dry cleaning, and peanuts. Windmill is absolutely acceptable if it's understood by people to mean wind turbine, which it is.