Adherence vs. adhesion

What does adherence mean?

Adherence is a noun meaning the quality or process of sticking something to an object or surface. However, adherence is often used figuratively to mean an attachment or commitment to a person or a belief.

For example:

·      His strict adherence to his religious beliefs means he won’t drink ale.

What does adhesion mean?

Adhesion is a noun meaning the process of sticking something to an object or surface. Adhesion can be used figuratively but it is more common to use adhesion literally.

For example:

·      The gecko adhesion system is fascinating because it allows the cute little critters to scale walls with ease.

What’s the difference between adherence and adhesion?

Both adherence and adhesion refer to the process of sticking something to an object or surface. However, adherence is often used in a figurative sense, while adhesion is more often literal.

For example:

·      The scientist’s adherence to studying the gecko adhesion system was admirable.