# petabyte

> English word · Noun · IPA /ˈpɛtəbaɪt/

## Definitions
1. One quadrillion (10¹⁵, or 1,000,000,000,000,000) bytes or 1,000 terabytes.
2. A pebibyte.

## Etymology
From peta- + byte.

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