Fabrication, n.
Etymology: [L. fabricatio; cf. F. fabrication.]
1. The act of fabricating, framing, or constructing; construction; manufacture; as, the fabrication of a bridge, a church, or a government. Burke.
2. That which is fabricated; a falsehood; as, the story is doubtless a fabrication.
Syn. -- See Fiction.
Shades of meaning
Fernald has no entry of its own for fabrication; he lists it under deception, fiction.
Where he writes about it:
A fabrication is designed to deceive; it is a less odious word than falsehood, but is really stronger, as a falsehood may be a sudden unpremeditated statement, while a fabrication is a series of statements carefully studied and fitted together in order to deceive; the falsehood is all false; the fabrication may mingle the true with the false. — from fiction