false drop

Etymology
From rod- (needle-) based retrieval in edge-punched card-based data systems.

Noun

 * 1) A non-targeted card that falls out from a card data deck, when a rod search is performed.
 * 2) Targets, hits, that are not relevant in an information retrieval search.
 * 3) Retrieved, but unwanted, document representations.
 * 4) noise in an information retrieval search.

Translations

 * Spanish: documento recuperado no pertinente