Internet Marketing and Development Services for Turnkey Web Solutions

Web & Internet Definitions

Thank you for using’s accumulated and growing Dictionary on Internet and Web Definitions. This database of Internet and Web Definitions have been written and compiled for our clients and users convenience and education. If you have any new entries you’d like to contribute or corrections/additions to existing definitions, please submit them to: Thank you!

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Select all words

Definition of CDATA

Abbreviation for Character Data. CDATA is a data type model used in SGML and XML with DTDs. According to HTML 4.0,
"CDATA is a sequence of characters from the document character set and may include character entities. User agents should interpret attribute values as follows:
  • Replace character entities with characters
  • Ignore line feeds
  • Replace each carriage return or tab with a single space.
  • User agents may ignore leading and trailing white space in CDATA attribute values"
The documentation for HTML 4 also places many additional constraints on various attribute's values which are often not expressable using DTD syntax or data types. On this site, the constrained set of values are described.