definition of
fixation

[1] #1 fixation n. [arrested development, infantile fixation, regression] an abnormal state in which development has stopped prematurely. wn

[2] #2 fixation n. [obsession] an unhealthy and compulsive preoccupation with something or someone. wn

[3] #3 fixation n. the activity of fastening something firmly in position. wn

[4] #4 fixation n. [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. wn