1 direct one's gaze on.
2 Psychol. a (usu. in passive; often foll. by on, upon) cause (a person) to acquire an abnormal attachment to persons or things (was fixated on his son). b arrest (part of the libido) at an immature stage, causing such attachment.
Etymology: L fixus (see FIX) + -ATE(3)
Useful english dictionary. 2012.