There's no denying the market is on the defensive these days. The S&P 500 currently sits more than 6% below its late-July peak, knocking on the door of new multi-week lows. Between the prospect of more profit-taking and just being in a lethargic time of year, stocks could be even lower than they are now in the foreseeable future.

If you're a true long-term growth investor, though, with some available cash to invest (say $3,000), you're not worried. Rather, you're eyeing this dip as a chance to put that $3,000 toward some new growth positions.

To this end, here's a closer look at three growth stocks to buy -- or even double up on right now if you already own a stake in any of them.

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Source Fool.com