Definitions

absolute zero

NOUN

lowest temperature

Synonyms

WEAK

absence of heat zero degrees Kelvin zero kelvins

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Superconducting circuits use metals cooled to near absolute zero; trapped ions are suspended in vacuums and manipulated by lasers.

From Barron's • May 21, 2026

"But even at the absolute zero temperature, the ground state, the ticking rate will still be affected by just the quantum fluctuations alone."

From Science Daily • May 18, 2026

By placing it inside a helium nanodroplet, they reduced its temperature to just 0.37 degrees above absolute zero.

From Science Daily • Apr. 7, 2026

They tested the system on an ultrathin sample of BSCCO, cooling it to near absolute zero so it would enter its superconducting state.

From Science Daily • Mar. 17, 2026

In theory, scientists can get energy from the Casimir effect even at absolute zero in the bleakest part of the vacuum of space.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife