Definition of lookup in US English:



  • 1usually as modifier The action of or a facility for systematic electronic information retrieval.

    • ‘The server is set up to send a malformed response to DNS lookups.’
    • ‘For performance tuning it is possible with servlets to cache common data (such as database queries) in memory to avoid unnecessary and costly database lookups.’
    • ‘Other connection filtering techniques include reverse lookups, verifying computer names and verifying the from email address.’
    • ‘Allowing the network to have dynamic members while ensuring that storage and lookups still function properly certainly is an improvement to our design.’
    • ‘This makes lookups faster, he said, which means the databases can be larger and more comprehensive.’
    1. 1.1 A facility for lookup.
      ‘you need an online dictionary with fast phonetic lookup’
      • ‘This facilitated a quick lookup of parental data given a genotype but did not allow a more complete description of the parental pedigree.’
      • ‘With an Internet connection available, then the integral CDDB lookup facility will quickly fill in the Artist, Title, Album, etc. from its database.’
      • ‘But wireless carriers outside Europe have not offered that latter option for Internet services such as games, directory lookup or other content until recently.’
      • ‘The Advanced Phonetic Lookup on the Record Details page allows you to perform various types of searches against the database using predefined combinations of fields as criteria.’
      • ‘In addition to that, it may be used in practical applications, such as interactive grammatical lookup and intelligent dictionaries, spell checkers, etc.’