The DT element defines a term in a definition list. The closing tag for DT is optional, but its use prevents common browser bugs with style sheets. Note that DT cannot contain block-level elements such as P and H2. A DT element should generally be followed by a DD element that provides the definition for the term given by the DT. A single definition term may have multiple definitions associated with it, and a single definition may have multiple terms. More Information
DT in W3C HTML 4.0 Recommendation DT in W3C HTML 3.2 Recommendation DT in HTML 2.0 Standard DT in WDG HTML 3.2 Reference DT in Learning HTML 3.2 by Examples