data lake

noun

A massive, easily accessible data repository built on inexpensive computer hardware for storing big data.

Meanings

noundata lake (plural data lakes)

plural data lakes

  1. A massive, easily accessible data repository built on inexpensive computer hardware for storing big data.

    The data lake, in turn, supports a two-step process to analyze the data.

    2014, Pethuru Raj, Ganesh Chandra Deka, editors, Handbook of Research on Cloud Infrastructures for Big Data Analytics, IGI Global, page 105
    5 more examples

    Data Lake? Cute! RT @mattcasters: Great intro to Pentaho Hadoop int. by Will @wpgorman "Battlebricks" Gorman : http://vimeo.com/14641559

    2010 September 21, Jos van Dongen, Twitter

    Based on the requirements above and the problems of the traditional solutions we have created a concept called the Data Lake to describe an optimal solution. If you think of a datamart as a store of bottled water – cleansed and packaged and structured for easy consumption – the data lake is a large body of water in a more natural state. The contents of the data lake stream in from a source to fill the lake, and various users of the lake can come to examine, dive in, or take samples.

    2010 October 14, James Dixon, “Pentaho, Hadoop, and Data Lakes”, in James Dixon’s Blog

    Perhaps the most transformative aspect of an analytics architecture that incorporates a data lake is that users do not need to have the possible answers in mind when they ask the questions.

    2013, Juergen Klenk, Yugal Sharma, Jeni Fan, “Saving Lives with Big Data: Unlocking the Hidden Potential in Electronic Health Records”, in Jay Liebowitz, editor, Big Data and Business Analytics, CRC Press, page 122

    The difference between a data lake and a data warehouse is that in a data warehouse, the data is pre-categorized at the point of entry, which can dictate how it’s going to be analyzed.

    2013, Soumendra Mohanty, Madhu Jagadeesh, Harsha Srivatsa, Big Data Imperatives […] , Apress, page 43

    One phrase in particular has become popular for describing the massing of data into Hadoop, the “Data Lake”, and indeed, this term has been adopted by Pivotal for their enterprise big data strategy.

    2014 January 14, Edd Dumbill, “The Data Lake Dream”, in Forbes

Origin

Coined by Pentaho CEO James Dixon in 2010.

Full word history & related roots →

Translations

Arabic بُحَيْرَة الْبَيَانَات
  • بُحَيْرَة الْبَيَانَاتTranslations
Chinese 数据湖
  • 数据湖Translations
Cite this entry
APA

data lake. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/data%20lake

MLA

“data lake.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/data%20lake. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “data lake,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/data%20lake.

Source: data lake on Wiktionary, CC BY-SA 4.0.