# Pochhammer symbol

> English word · Noun

## Definitions
1. The notation (x)ₙ, where n is a non-negative integer, which depending on the context represents either the rising factorial or the falling factorial.

## Etymology
Introduced by Leo August Pochhammer.

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