Memorization (4)
I believe the answer is:
rote
'memorization' is the definition.
(rote is a kind of memorization)
This is all the clue.
(Other definitions for rote that I've seen before include "Habitual routine" , "Repetition for learners" , "Mechanical procedure" , "Way of learning" , "Learn by . . . . to have off by heart" .)