Madhyamika. Founded by Nagarjuna, this Buddhist school of thought is one of the four principal philosophical schools of Buddhism. Existence that is produced by causes, this school teaches, is empty or vacuous. It has no reality at all. Neither can one be wise till one understands this basic truth, nor can nirvana be reached until everything that brings about such vacuous existence is extinguished.

Geddes MacGregor, Dictionary of Religion and Philosophy, New York: Paragon House, 1989

thal 'gyur pa

[translation-san] prāsaṅgika-[mādhyamika]

[translation-eng] {Hopkins} [Middle Way] Consequence School

Jeffrey Hopkins' Tibetan-Sanskrit-English Dictionary