What context can I use each word in?
Learn when and how to use these words with these examples!
substituent
Example
The substituent group on the benzene ring determines the properties of the molecule. [substituent: noun]
Example
We need to find a substituent for the missing ingredient in the recipe. [substituent: adjective]
replacement
Example
The replacement teacher will take over the class until the regular teacher returns. [replacement: noun]
Example
I need to order a replacement battery for my laptop. [replacement: adjective]
Good things to know
Which word is more common?
Replacement is more commonly used than substituent in everyday language, due to its versatility and broader range of applications.
What’s the difference in the tone of formality between substituent and replacement?
Substituent is more formal than replacement, as it is primarily used in scientific and technical contexts.