Definition
An 'erratum' (plural: errata) is similar to a corrigendum; it's a formal correction to a published text, often for academic or technical works. It is a statement correcting a mistake in a book. Think of it as a 'whoops, we goofed' note. 'Erratum' is often used in more formal or scholarly contexts than 'corrigendum'. It's typically a separate insert or page.