a definition consisting of a set of rules such that by repeated application of the rules the meaning of the definiendum is uniquely determined in terms of ideas that are already familiar.
Redefine Black: Why Dictionary.com Is Updating Its DefinitionWhen My Black Is Beautiful reached out to Dictionary.com about "Redefine Black," we saw an opportunity to revisit our current entry of the word Black. As a result of this conversation, we’re making some updates and revisions that will be rolled out on Dictionary.com later this year.
Origin of recursive definition
First recorded in 1935–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019