artifact

synonym: artefact
https://doi.org/10.1351/goldbook.14108
Observation, effect, or result that is inaccurate because it is produced by the methodology used in scientific investigation or by experimental error.
Source:
PAC, 2011, 83, 1129. (Glossary of terms used in biomolecular screening (IUPAC Recommendations 2011)) on page 1132 [Terms] [Paper]