# h-index

> English word · Noun

## Definitions
1. An author-level metric that attempts to measure both the productivity and the citation impact of the publications of a scientist or scholar, based on a set of most cited papers and the number of citations in other publications.

## Etymology
The h stands for “highly cited” and Hirsch, since the metric was suggested in 2005 by physicist Jorge E. Hirsch.

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