'lookup' definitions:

Definition of 'lookup'

(from WordNet)
noun
An operation that determines whether one or more of a set of items has a specified property; "they wrote a program to do a table lookup" [syn: search, lookup]

Definition of 'lookup'

From: GCIDE
  • lookup \look"up\ n. (Computers) an operation that determines whether one or more of a set of items has a specified property; as, they wrote a program to do a table lookup.
  • Syn: search. [WordNet 1.5]