Noun | 1. | knowledge base - the content of a particular field of knowledge cognitive content, mental object, content - the sum or range of what has been perceived, discovered, or learned discipline, field of study, subject area, subject field, bailiwick, subject, field, study - a branch of knowledge; "in what discipline is his doctorate?"; "teachers should be well trained in their subject"; "anthropology is the study of human beings" realm, region - a knowledge domain that you are interested in or are communicating about; "it was a limited realm of discourse"; "here we enter the region of opinion"; "the realm of the occult" scientific knowledge - knowledge accumulated by systematic study and organized by general principles; "mathematics is the basis for much scientific knowledge" |