What does mean in DTD?

Related questions

1. What does BC mean in pregnancy?
2. What is the meaning of ASF?
3. Is DTD better than XML?
4. What are some signs that labor is nearing?
5. Is DTD extensible?
6. What is DTD processing?
7. What is XML DTD?
8. What is DTD in pregnancy?
9. What is difference between internal and external DTD?
10. What is the purpose of DTD?

Tags

1. #defines
2. #structure
3. #legal
4. #definition
5. #document
6. #attributes
7. #elements