absolute zero

noun

: a theoretical temperature characterized by complete absence of heat and motion and equivalent to exactly −273.15°C or −459.67°F

Examples of absolute zero in a Sentence

Recent Examples on the Web

The scientists entangled two qubits kept at temperatures near absolute zero at the opposing ends of a 30-meter-long tube. —Adam Kovac, Scientific American, 27 May 2026

Researchers used two qubits cooled close to absolute zero and linked through microwave photons traveling between the chips. —Neetika Walter, Interesting Engineering, 27 May 2026

Historically, extremely cold temperatures, near absolute zero, were used to put them in a quiet state, which required bulky and expensive systems. —Aldo Svaldi, Mercury News, 19 May 2026

Historically, extremely cold temperatures, near absolute zero, were used to put them in a quiet state, which required bulky and expensive systems. —Aldo Svaldi, Denver Post, 18 May 2026

Word History

First Known Use

1798, in the meaning defined above

Rhymes for absolute zero

• biro
• spiro
• subzero
• superhero

Kids Definition

absolute zero

noun

: a hypothetical temperature that has never been reached, represents no heat at all, and is equal to approximately −273.15°C or −459.67°F

Medical Definition

absolute zero

noun

: a theoretical temperature characterized by complete absence of heat and equivalent to exactly −273.15°C or −459.67°F