# poikilothermic

> English word · Adjective

## Definitions
1. Having a body temperature that varies depending on the outside temperature.

## Etymology
From poikilo- + -thermic.

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