No, they arent 'contained' in the word fiction, you have that on backward. With additional specific structures, things not contained in the basic definition, you the novel, or whatever. The movement is the opposite of what you're implying.
They are contained in Def 1, yes. Like mug is contained in the word cup. But perhaps even more so because when I hear the word fiction, the first thing that leaps to mind is a book of fiction (and I suspect that is true for many people). Fiction is a broad category meaning invented imaginary thing right? That would include all manner of invented imaginary things, such as novels and literature. They are therefore contained in the word fiction. And like I said more than that: they are the notable examples listed in the dictionary definition 1.
And that is just that particular dictionary. I grabbed it because it was the first one. But here is what Dictionary.com offers (again I think the room for equivocation is obvious....not saying you are equivocating, but this is pretty straight forward):
See synonyms for:
fiction /
fictional on Thesaurus.com
noun
1. the class of literature comprising works of imaginative narration, especially in prose form.
2. works of this class, as novels or short stories: detective fiction.
something feigned, invented, or imagined; a made-up story: We've all heard the fiction of her being in delicate health.
3 the act of feigning, inventing, or imagining.
4 an imaginary thing or event, postulated for the purposes of argument or explanation.
5 Law. an allegation that a fact exists that is known not to exist, made by authority of law to bring a case within the operation of a rule of law.