Definition of "knowledge base" [knowledge base]

• Computer Science The part of an expert system that contains the facts and rules needed to solve problems. (noun)
• A collection of facts and rules for problem solving. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.