the principle that the laws of quantum mechanics and of any new theory that may be developed reduce to the laws of Newtonian mechanics and electromagnetic theory when applied to systems in which Planck's constant can be regarded as negligible, wavelengths are comparatively small, dimensions are relatively large, etc.
Principal vs. PrincipleIs the head of a school called a principal or a principle? These two words are frustratingly similar, leaving even the most experienced English speakers to second-guess which word means what. Today, we’ll discuss the distinct meanings between these easy-to-confuse terms and a little trick to help differentiate between your principals and your principles. What is a principal? A principal is “a chief or head, …
7 Chinese Loanwords to Expand Your VocabularyRead more in this article about some frequently asked questions and fun facts related to our definitions.
- correspondence column,
- correspondence course,
- correspondence school,
- correspondence theory,
- correspondent bank
Origin of correspondence principle
First recorded in 1920–25
Also called principle of correspondence.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019