Artifact (noun)

1. An object made by a human being, typically an item of cultural or historical interest.
2. A feature or effect that is the result of the process and not the desired outcome.

Origin:

Late 16th century (in the sense "something created by human art or industry"): from latin artifactum, from arte "by skill" + factum "something made".

Examples:

1. The museum had a collection of ancient artifacts.
2. The archaeologists discovered a number of interesting artifacts in the dig.
3. The image was distorted by a compression artifact.
4. The artifact in the image caused by the camera's flash.
5. The design team had to remove the artifact caused by the software bug.