Noun

• S: (n) arrested development, fixation, infantile fixation, regression (an abnormal state in which development has stopped prematurely)
• S: (n) obsession, fixation (an unhealthy and compulsive preoccupation with something or someone)
• direct hypernym / inherited hypernym / sister term
• derivationally related form
• S: (n) fixation (the activity of fastening something firmly in position)
• S: (n) 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)