# femtoscopy

> English word · Noun

## Definitions
1. The study of reactions and other processes on a femtosecond basis.

## Etymology
From femto- + -scopy.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/femtoscopy