artefact, artifact [ˈɑːtɪˌfækt]
n
1. something made or given shape by man, such as a tool or a work of art, esp an object of archaeological interest
2. anything man-made, such as a spurious experimental result
3. (Life Sciences & Allied Applications / Biology) Cytology a structure seen in tissue after death, fixation, staining, etc., that is not normally present in the living tissue
[from Latin phrase arte factum, from ars skill + facere to make]