[surfaceTensi0n]

I don't think your example would qualify unless a real error was made e.g. the chemo killed them so there was a planning error in putting them on chemo. The truth is that many people with cancer will not survive. In those cases, chemo is not about saving their lives, just extending them.

[aptwebapps]

You're saying what it should be but the parent comments are talking about what it actually says. Specifically, "one that does not achieve its intended outcome".

[surfaceTensi0n]

I'm arguing that the "intended outcome" isn't always complete recovery. If a patient with terminal cancer dies, that doesn't necessarily mean that the chemo didn't achieve its intended outcome.