1. An abbreviated name for Birushana Buddha (Birushana butsu毘盧遮那佛). 2. In the Tendai (C. Tiantai 天台) school's interpretation of the doctrine of the three bodies (sanshin 三身, S. trikāya) of Buddha, Birushana 毘盧遮那 is the dharma body (hosshin 法身, S. dharmakāya), Rushana 盧舍那 is the response body (ōshin應身, S. sambhogakāya), and Shakamuni is the transformation body (keshin 化身, S. nirmāakāya) of the Buddha. This scheme is reflected in the verse of Ten Buddha Names (Jūbutsumyō 十佛名) used in Japanese Zen, which begins with those three names.