Utm - what does this mean in the campaigns?

Marketing
1

Someone has any idea with the word - utm?
It normally appears in google’s tracker and many other email or sales campaigns.

This word is common to most applications (in the URL parameters or within the javscripts), and I ask about it.

Thanks.

2

I think that’s from when Google Analytics was Urchin, i.e. Urchin Tracking Module:

http://www.intownwebdesign.com/google-analytics/google-analytics-utm-link-tagging-explained.html