Definition, Meaning & Synonyms

dtd

noun

dee-tee-dee

Definition

DTD stands for Document Type Definition. It is a set of markup declarations that define a document type for an SGML family (such as HTML or XML).

Examples

The DTD for this XML document specifies the rules for its structure.
The developer integrated a DTD to ensure that the XML data is correctly formatted.

Meaning

In the context of XML and HTML, DTD specifies the structure, elements, and attributes of a document. It helps parsers validate the correctness of the document’s structure.