Definition of half–integer
: any number of the form x/2, where x is any odd integer Particles whose spin is a half-integer of h, on the other hand, are fermions satisfying the Pauli exclusion principle; no two particles can have the same state. — Qimiao Si et al., Science, 3 Sept. 2010 ◆A half of an even integer is considered an integer. A half-integer is the result of a half of an odd integer.
half–integraladjective All the particles that we like to think of as “real” particles, like protons, neutrons and electrons, have spin which is half-integral—1/2, 3/2, 5/2 and so on. — John Gribbin, The Search For Superstrings, 1998
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
First Known Use of half–integer
Seen and Heard
What made you want to look up half–integer? Please tell us where you read or heard it (including the quote, if possible).