According to traditional Chinese medicine, a dense essence stored in the kidneys that is the material basis for the physical body. It is yin in nature.
A relatively uncommon Chinese family name. In Chinese, there are several possible ways to write it, each with a different meaning: 井 (water well), 景 (scenery), 京 (capital), 荊 (thorns), 經/经 (passing through), 更 (more), 敬 (respect), 靖 (peaceful).