胎蔵界 (Skt garbhadhatu; Jpn taizo-kai )
Also, Womb World. A realm depicted in the Mahavairochana Sutra, a principal scripture of Esoteric Buddhism. In this realm, all compassionate actions leading to salvation are depicted as being born of and sustained by the fundamental principle of the universe, just as life is nurtured by and born from the womb. The Womb Realm thus represents the "repository of truth," or Dharma body of Mahavairochana Buddha, that is considered the source of all compassion. This term contrasts with the Diamond Realm, which represents the wisdom of Mahavairochana. The Womb Realm is represented graphically in Esoteric Buddhism by the Womb Realm mandala. Garbha of the Sanskrit name garbhadhatu means womb, embryo, or fetus, and dhatu means realm, world, or layer.