n 1  :  the act, process, or result of fixing, fixating, or becoming fixated: as  a  :  the act or an instance of focusing the eyes upon an object  b  :  a persistent concentration of libidinal energies upon objects characteristic of psychosexual stages of development preceding the genital stage  c  :  stereotyped behavior (as in response to frustration)  d  :  an obsessive or unhealthy preoccupation or attachment  2  :  the immobilization of the parts of a fractured bone esp. by the use of various metal attachments .
 
 
 
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