adherer
/əˈdɪrər/Definitions
1. noun
One that adheres to a particular cause or opinion; a supporter
“The adherer to the new policy was met with strong resistance from the opposition.”
2. noun
A substance that adheres to another substance
“The adherer used in the glue is made from plant-based materials.”
3. verb
Past tense of adhere
“The new policy has adhered to the existing framework.”