fixation

noun
UK /fɪkˈseɪ.ʃən/
US /fɪkˈseɪ.ʃən/

A fixation is when you can't stop thinking about one thing.

His fixation on video games made it hard for him to focus on homework.


OTHER MEANINGS

2. The act of fastening or holding something firmly in place.

The fixation of the shelf to the wall kept it from falling.

3. In biology, the process of preserving tissue or cells so they can be studied.

The scientist used chemical fixation to keep the sample stable under the microscope.

4. In psychology, when a person's development gets stuck at an early stage.

Some theories say a fixation can affect a person's behavior later in life.