Definition

Relating to a process that releases heat to its surroundings, often during a chemical reaction.

Example

The exothermal reaction caused the temperature of the surrounding area to rise significantly.

Conversation

Did you know that some reactions are exothermal and release heat?

Really? I had no idea how that worked.

Yeah, it’s interesting how they can warm up their surroundings.

Science is full of surprises like that!

Synonyms & Antonyms

Root Explanation

Exothermal → It is formed from "exo-" (from Greek "ἔξω" meaning outside) and "thermal" (from Greek "θερμός" meaning heat). The word describes a process that releases heat to the outside environment.

Memory Tip

Think of 'outside' ('exo-') and 'heat' ('thermal') to remember that exothermal refers to processes that release heat to the outside.

Visually Confused Words