Search Result for "positioner": 
Wordnet 3.0

NOUN (1)

1. (computer science) the actuator that moves a read/write head to the proper data track;
[syn: rotary actuator, positioner]



WordNet (r) 3.0 (2006):

positioner
    n 1: (computer science) the actuator that moves a read/write
         head to the proper data track [syn: rotary actuator,
         positioner]