whatis

/ˈwɒtɪz/

noun — "a structured explanation of a term, concept, or technology."

Whatis refers to the format, system, or page type designed to provide a comprehensive definition of a specific term, concept, technology, or process in computing, electronics, cryptography, or related fields. It is not merely a dictionary entry; instead, a whatis page is crafted to give the reader a deep, in-context understanding of the term, including its practical applications, technical details, history, relationships to other concepts, and real-world examples.