noun

• An object made or shaped by human hand or labor.
• An object made or shaped by some agent or intelligence, not necessarily of direct human origin.
• Something viewed as a product of human agency or conception rather than an inherent element.
• A finding or structure in an experiment or investigation that is not a true feature of the object under observation, but is a result of external action, the test arrangement, or an experimental error.
• (archaeology) An object, such as a tool, ornament, or weapon of archaeological or historical interest, especially such an object found at an archaeological excavation.
• (biology) An appearance or structure in protoplasm due to death, the method of preparation of specimens, or the use of reagents, and not present during life.
• (computing) A perceptible distortion that appears in an audio or video file or a digital image as a result of applying a lossy compression or other inexact processing algorithm.
• (museology) Any object in the collection of a museum. May be used sensu stricto only for human-made objects, or may include ones that are not human-made.
• (software engineering) Ellipsis of build artifact. [(software engineering) Any of the files that result from a compilation process and are deployed for use.]