Earlier quoted context omitted.
Funny tidbit: "missile" used to be an adjective, "a missile weapon" = "a weapon than can be sent/thrown". Same with cereals, "cereal" was an adjective that meant "relative to the goddess Ceres" then "relative to bread/wheat". "Cereal plants" -> cereals. It's called "nominalization (or substantivization) by ellipsis".
Reminds me of how some people (groups? cultures?) call a lathe a “lathe machine.”
* https://www.renaissancewoodworker.com/foot-powered-wood-turn...