Adobe Photoshop / Lightroom Terms

So I got Adobe Lightroom the other day. I've been playing around with photoshop for a while but it wasn't until I got lightroom that I realized I didn't know what any of those terms meant. Like hue, saturation, vibrance. I notice I use them but I don't know exactly what they are and what they're used for. Can somebody give me a quick definition of those terms or maybe refer me to a site that does have them. Thanks so much.

Hue, Saturation

It's easier to wiki rather than muff it myself. Also you might try a good old fashion color wheel. Most include a lot of info on color theory. You would think I would know them better since I mix colors all the time but after you read it once you just forget the exact meaning.

"Lightroom's Vibrance slider is a more selective version of the Saturation slider. Whereas the Saturation slider increases the saturation of all of the tones in your image, the Vibrance slider limits its saturation boost to primary colors, leaving skin tones and other secondary shades untouched" CreatvePro