# plastic pants

> English word · Noun

## Definitions
1. An undergarment worn over a diaper or nappy (or underwear) in order to prevent leakage through the fabric.

## Etymology
From plastic + pants. Late 1940s, when polyvinyl chloride (a plastic) replaced latex as the principal material of the garment due to its lower cost. Compare earlier rubber pants.

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