n.

1. 人工制品；加工品
2. 【生】矫作物
3. （低劣的）艺术品
4. 【医】（脑电波图中）非源自脑中的电波

n.

1. an object made by a human being.
2. something observed in a scientific investigation that is not naturally present but occurs as a result of the investigative procedure.