quantum mechanics

noun

plural in form but singular or plural in construction

: a theory of matter that is based on the concept of the possession of wave properties by elementary particles, that affords a mathematical interpretation of the structure and interactions of matter on the basis of these properties, and that incorporates within it quantum theory and the uncertainty principle

called also wave mechanics

quantum mechanical adjective

quantum mechanically adverb

Examples of quantum mechanics in a Sentence

Recent Examples on the Web

Researchers have used it in other areas of quantum mechanics, but not for noise analysis. —Aamir Khollam, Interesting Engineering, 20 Nov. 2025

Think of it as sort of Martin & Lewis, but with more quantum mechanics. —Luke Burbank, CBS News, 16 Nov. 2025

That theory, quantum mechanics, found immediate success, proving its worth with accurate calculations of hydrogen’s emission and absorption of light. —Daniel Garisto, Quanta Magazine, 7 Nov. 2025

The technology utilizes quantum mechanics to address problems that traditional computers are unable to solve. —Samantha Subin, CNBC, 24 Oct. 2025

Word History

First Known Use

1922, in the meaning defined above

Rhymes for quantum mechanics

• biomechanics
• hispanics
• organics
• volcanics
• panics

Medical Definition

quantum mechanics

noun, plural in form but singular or plural in construction

: a theory of matter that is based on the concept of the possession of wave properties by elementary particles, that affords a mathematical interpretation of the structure and interactions of matter on the basis of these properties, and that incorporates within it quantum theory and the uncertainty principle

called also wave mechanics

quantum mechanical adjective

quantum mechanically adverb