# baselayer

> English word · Noun

## Definitions
1. A tight undergarment worn to strengthen muscles. It provides compression which helps an athlete's performance.

## Etymology
From base + layer.

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