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

They worked with a gas of lithium atoms cooled to just a few billionths of a degree Celsius above absolute zero.

From Science Daily • Apr. 27, 2026

Xanadu’s machines will be able to function at room temperature, eliminating the need for the bulky refrigerators needed to cool the components of most computers to absolute zero.

From Barron's • Mar. 30, 2026

The ground state represents the lowest possible energy configuration of a system, and at absolute zero temperature every system exists in this state.

From Science Daily • Mar. 16, 2026

A black hole with a mass a few times that of the sun would have a temperature of only one ten millionth of a degree above absolute zero.

From "A Brief History of Time: And Other Essays" by Stephen Hawking