What is the best word for lateral translational movement in a rotorcraft? I'm talking about movement left and right without changing attitude. This is a motion that can be done with a quadcopter and to a limited extent a helicopter (I presume). 

On a helicopter a left/right movement of the cyclic will command a roll motion from the rotor, but in a hover the aircraft would only roll slightly then begin to move sideways. Does the pilot just call this a roll or is there another, more appropriate word? 

I thought of slip or crab, but those describe specific attitudes associated with forward flight. They don't seem to fit the bill here.
The term I preferred was "slide"

In our NATOPS manuals, and in our trained procedures in both Search and Rescue ops, and cargo ops, in the Navy the crewman would call for us to "slide left" or "slide right" as he positioned us over the pick up point.  (Easy Left/Easy Right as we got closer to the spot).  

The FAA term "sideward hovering" suffices, but it is two words.  If you want one word, slide is about right.