1. (

• arrested_development ,
• fixation ,
• infantile_fixation ,
• regression

) an abnormal state in which development has stopped prematurely ;

2. (

• obsession ,
• fixation

) an unhealthy and compulsive preoccupation with something or someone ;

3. (

• fixation ,

) the activity of fastening something firmly in position ;

4. (

• fixation ,
• fixing ,

) (histology) the preservation and hardening of a tissue sample to retain as nearly as possible the same relations they had in the living body ;