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

These futuristic machines harness the strange properties of quantum mechanics to perform specific types of calculations exponentially faster than even the most powerful supercomputers. —Bernard Marr, Forbes.com, 12 June 2025

Quantum computing is a rapidly-developing area of computer science that uses quantum mechanics to solve problems too complex for traditional binary computers. —Julie Coleman, CNBC, 11 June 2025

Atoms and molecules obey quantum mechanics, which is much more complex. —Manon Bischoff, Scientific American, 4 June 2025

Personalized learning systems can tailor complex scientific concepts to individual learners, making the vastness of quantum mechanics or the intricacies of protein folding more accessible and, consequently, more awe-inspiring. —Cornelia C. Walther, Forbes.com, 1 June 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