'Retrieval' definitions:

Definition of 'retrieval'

From: WordNet
noun
(computer science) the operation of accessing information from the computer's memory
noun
The cognitive operation of accessing information in memory; "my retrieval of people's names is very poor"
noun
The act of regaining or saving something lost (or in danger of becoming lost) [syn: recovery, retrieval]

Definition of 'Retrieval'

From: GCIDE
  • Retrieval \Re*triev"al\, n. The act retrieving. [1913 Webster]