oxidised
Intermediate (B1)
IPA: /ˈɒksɪdaɪzd/
KK: /ˈɑksɪˌdaɪzd/
adjective
Definition
Describes something that has undergone a chemical reaction with oxygen, often resulting in a change in color or composition.
Example
The metal has oxidised, giving it a rusty appearance.
Conversation
Have you seen the new bike I got?
Yeah, it looks great! Is that the one that got oxidised during the storm?
Exactly! I had to get it cleaned up before I could ride it again.
Good thing you did! It looks brand new now.
Synonyms & Antonyms
Synonyms
rusted
corroded
tarnished
Antonyms
reduced
pure
unoxidized
verb
Definition
To have undergone a chemical reaction with oxygen, often resulting in a change in color or composition.
Example
The metal has oxidised, causing it to turn a reddish-brown color.
Tense Forms
Past: oxidised
Past Participle: oxidised
Conversation
I noticed that the metal on your bike has oxidised a bit.
Yeah, it’s been sitting outside for a while now.
You should probably clean it up before it gets worse.
Root Explanation
Oxidised → It is formed from "oxid" (from Latin "oxydum", meaning acid or sour) and "-ise" (a suffix used to form verbs). The word "oxidised" refers to the process of a substance combining with oxygen, often resulting in a change in chemical composition.
Memory Tip
Think of a substance that is 'changed' ('-ise') by 'combining with oxygen' ('oxid') — that's what oxidised means.
Visually Confused Words
No commonly confused words.