##  [Bloom Filter](/bloom-filter) 

  ##  [Bloom Filter](https://natural.quantumdictionary.io/bloom-filter-0) 

  

 [![Natural & Formal Sciences Dictionary](/sites/default/files/styles/large/public/2026-01/Natural%20%26%20Formal%20Sciences.png.webp?itok=2kCDRVQv)](/topic-specific-dictionaries/natural-formal-sciences)



**Natural & Formal Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A space-efficient probabilistic data structure for approximate set membership queries that can return false positives but never false negatives; it uses multiple hash functions to set bits in a fixed-size bit array.