# pi-plus

> English word · Noun

## Definitions
1. The positive pion, composed of an up quark and an anti-down quark.

## Etymology
From the pronunciation of its symbol π⁺.

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