No, DHTML meant little snippets that you could add to your page to add effects and widgets, whether arguably useful things like button rollover (many of you will remember the incantation I think it was Adobe Fireworks produced, something along the lines of <img src="button1.jpg" onmouseover="MM_something('button1_rollover.jpg')" onmouseout="MM_something('button1.jpg')">) or widgets like a “scroll to top” link in the bottom right corner that only appeared when you had scrolled down some way, or ridiculous things like drawing an analogue clock around the mouse cursor that followed your movement but as though the digits were connected by pieces of elastic each to the next, or snowflakes falling down the screen. Browse http://www.dynamicdrive.com/, that was DHTML. DHTML mostly meant fripperies, but did definitely include useful functionality like calendar widgets. But that was the scope of it: isolated things here and there that you could add to an existing page.
Web apps today are a whole-page affair, where the scripting is woven through the entire thing; they’re essentially unrecognisably different from DHTML.