SSC RF "Troitsk Institute of Innovative and Thermonuclear Research" or TRINITY for short ) is a Russian state scientific center (SSC) in the field of controlled thermonuclear fusion, plasma physics, laser physics, and the technology and practical application of impulse sources of power supply based on MHD generators.

The Christian doctrine of the Trinity (from Latin trinitas "triad", from trinus "threefold") defines God as three consubstantial persons, expressions, or hypostases: the Father, the Son (Jesus Christ), and the Holy Spirit; "one God in three persons". The three persons are distinct, yet are one "substance, essence or nature". In this context, a "nature" is what one is, while a "person" is who one is.