Definition of pi electron
: an electron involved in a pi bond
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 pi electron
Seen and Heard
What made you want to look up pi electron? Please tell us where you read or heard it (including the quote, if possible).