Document type definition. A document type definition (DTD) is a set of markup declarations that define a document type for an SGML-family markup language (SGML, XML, HTML). A Document Type Definition (DTD) defines the legal building blocks of an XML document. It defines the document structure with a list of legal elements and attributes. A DTD can be declared inline inside an XML document, or as an external reference.
American hornbeam. The American hornbeam is a native forest understory tree in the Chicago area, making it useful for shady landscapes and naturalized or woodland gardens.New leaves emerge reddish-purple, changing to dark green, then turn yellow to orange-red in the fall, offering a kaleidoscope of color throughout the year.merican hornbeam. The American hornbeam is a native forest understory tree in the Chicago area, making it useful for shady landscapes and naturalized or woodland gardens.
U.S. National Register of Historic Places. The Yaquina Head Light, also known early in its existence as the Cape Foulweather Lighthouse, is a lighthouse on the Oregon Coast of the United States. It is located in Lincoln County, near the mouth of the Yaquina River near Newport at Yaquina Head.