According to the SEC, day trading is not itself a form of investment due to the lack of fundamental analysis, a lack of long term thinking, a bigger focus on price movements and a more technical approach.
But of course, by a number of other definitions, it is. It really just depends on what yours or someone else's frame of reference is.
Comment sets itself up for a reply about casinos.
> expend money with the expectation of achieving a profit or material result by putting it into financial plans, shares, or property
None of that says "long term"