Associated with zero on any scale, but particularly with a temperature of absolute zero(adjective)
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Use "zero-point" in a sentence
"This tiny residual motion is called zero-point energy, which is the minimum quantum energy associated with a particle due to its confinement."
"Known as a zero-point field, this Dark Star is a moving body of negative energy that will destroy all life on Earth when it returns to the edge of our solar system in March 2008."
"A future society, reaping the benefits of nanotechnology, zero-point energy, and other advances unfathomable to us cryonauts, could not help but be magnanimous and grant us our last and greatest wish."