k3tog, you've got it exactly.
The other instructions, all together, form "cdd," Centered Double Decrease. You can find a video in the abbreviations explained page. (One of these days I'll put up a page on double decreases, but until then....)
KnittingHelp Queen Bee
It is not because things are so difficult that we do not dare; it is because we do not dare that they are difficult.