# PCR vs pec

> English confusable word pair

## The two words

### PCR
*noun · IPA /pi si ɑɹ/ · frequency rank #23,937*
Initialism of polymerase chain reaction.

### pec
*noun · frequency rank #47,251*
The pectoralis major muscle.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-02.
Canonical page: https://plainspell.com/en/vs/pcr-vs-pec