What else does anyone use the term satellite dish to refer to?

Any antenna that's parabolic in shape that isn't designed/used to communicate with a satellite is just called a satellite dish is common usage, but technically really shouldn't be.

It's funny, I can't recall every hearing anybody say "satellite dish" for a terrestrial antenna in my years in metro and suburban California. I've heard "reflector dish", "dish antenna", "microwave dish", or "directional antenna" (which could also apply to YAGI and other non-dish structures).

I wonder if it is regional or has other socioeconomic factors? Actual satellite dishes weren't common structures when I was growing up, outside either a sports bar with satellite TV feeds or more commonly large dishes on industrial, military, or scientific facilities. Other, smaller directional antenna were more commonly seen on radio towers etc.

Probably? One of the subtexts of this article and the ensuing conversation is that English has an absolutely mind-smashing amount of variability in usage.

In my general area, just a few hundred kilometers separates two groups of people who are frequently confused by each others' usage of the word "party store." Expanding a hyponym's meaning to encompass that of its hypernym is so common that I'm not even sure it requires special explanation. I've got some family members whose favorite kind of coke is Pepsi.

Parabolic antennas that are used for terrestrial communication.