Short for HyperText Markup Language, the authoring language used to create documents on the World Wide Web. HTML is similar to SGML, although it is not a strict subset. HTML defines the structure and layout of a Web document by using a variety of tags and attributes.
Formal operational thought is the type of cognitive activity that occurs within the titular formal operational stage as articulated by Piaget's theory of cognitive development. According to Piaget, the formal operational stage begins at around age eleven.
These commands are summarized in the so called Formaldienst-guideline (engl. approx.: formal service), which is also the common term for military drill in the Bundeswehr. The Army (Deutsches Heer) and Air Force (Luftwaffe) use the same commands; the German Navy (Deutsche Marine) has a number of additional commands for duty on a ship.