What Does Www Mean In Japanese What Does The Longest Word In Japanese Mean?

What does the longest word in Japanese mean? - what does www mean in japanese

To be the longest word in Japanese:

リュウグウノオトヒメノモトユイノキリハズシ

Y is structured as follows:

ryûgûnootohimenomotoyuinokirihazushi

So what does this mean? I took some Japanese classes, but I have no idea what that means ...

Help?

Thank you =]

xD