outgas
Intermediate (B1)
IPA: /ˈaʊtˌɡæs/
KK: /aʊtˌɡæs/
intransitive verb
Definition
To release gas from a solid material, often as a result of heating or chemical reactions.
Example
The material will outgas when exposed to high temperatures.
Tense Forms
Past: outgassed
Past Participle: outgassed
Conversation
I heard that some materials can really outgas over time.
Yeah, that's true! It can affect air quality in a room.
I didn't know that! How do you even know which ones do?
You can usually check the product labels or do a bit of research online.
Synonyms & Antonyms
Synonyms
vent
release
emit
Antonyms
absorb
contain
trap
transitive verb
Definition
To release gas that is trapped in a solid material, often by heating it or lowering the pressure.
Example
The scientists needed to outgas the samples before conducting the experiment.
Tense Forms
Past: outgassed
Past Participle: outgassed
Conversation
Did you know that some materials need to outgas before they can be used safely?
Really? I had no idea materials could hold onto gas like that.
Yeah, it's important to outgas them to avoid any potential hazards.
Root Explanation
Outgas → It is formed from "out-" (meaning outside or away) and "gas" (from Old French *gas*, meaning vapor or air). The word refers to the process of releasing gas or vapor from a substance, typically in a vacuum or during heating.
Memory Tip
Think of something releasing vapor or air 'outside' ('out-') — that's what outgas means.
Visually Confused Words
outask
utas