endothermic

adjective

en·​do·​ther·​mic ˌen-də-ˈthər-mik 

1

: characterized by or formed with absorption of heat

2

: warm-blooded

Examples of endothermic in a Sentence

Recent Examples on the Web

This is classic endothermic dissolution (a process that pulls heat in), but supercharged by pressure control. — Christopher McFadden, Interesting Engineering, 1 Feb. 2026

Gayford’s team included one of these regionally endothermic sharks — the thresher — in the dataset. — Quanta Magazine, 27 Oct. 2025

Looking at fossil structures across latitudes provided insight into whether the animals there were ectothermic or endothermic. — Danny Robb, JSTOR Daily, 8 Feb. 2025

Mammals like the orca were ruled out due to having warmer temperature readings, so the scientists focused on endothermic sharks. — Stephen Sorace, Fox News, 4 Sep. 2024

So the scientists centered on endothermic sharks, which have some warm-blooded capabilities. — Evan Bush, NBC News, 3 Sep. 2024

But a handful of them—including great white sharks, thresher sharks and mako sharks—are regionally endothermic, just like the megalodon was. — Sarah Kuta, Smithsonian Magazine, 27 June 2023

With the tooth data, the researchers concluded that the megalodon had been endothermic, after all, and had benefitted greatly from the ability. — Matt Hrodey, Discover Magazine, 26 June 2023

The mako shark, for example, is the fastest shark and partly endothermic. — John Timmer, Ars Technica, 26 June 2023

Word History

Etymology

International Scientific Vocabulary

First Known Use

1884, in the meaning defined at sense 1

Rhymes for endothermic

• exothermic
• hypodermic
• hypothermic
• thermic

Kids Definition

endothermic

adjective

en·​do·​ther·​mic ˌen-də-ˈthər-mik 

: characterized by or formed with absorption of heat

Medical Definition

endothermic

adjective

en·​do·​ther·​mic ˌen-də-ˈthər-mik 

variants also endothermal

-məl 

1

: characterized by or formed with absorption of heat compare exothermic

2

: warm-blooded