I guess "prescription" refers directly to your first definition but can also refer to the two other ones by metonymy [0]. [0] https://en.wikipedia.org/wiki/Met

I guess "prescription" refers directly to your first definition but can also refer to the two other ones by metonymy [0]. [0] https://en.wikipedia.org/wiki/Metonymy https://en.wikipedia.org/wiki/Metonymy