thurman083012_02_X17.JPGUma Thurman has finally revealed her 3-month-old daughter's name, and we have to say ... it's not quite like anything we've ever heard before!

"I would like to announce Uma and Arki's daughter's name for the first time officially: Rosalind Arusha Arkadina Altalune Florence Thurman-Busson, better known to family and friends as Luna," the actress' rep said in a statement. "Each name has a special reason and meaning to her mother and father."

Thurman and longtime boyfriend Arpad "Arki" Busson welcomed their first child together on July 15. The couple began dating in 2007, but they called off their engagement in 2009, only to reunite in 2011. Uma also has a daughter, Maya, and son, Levon, with ex-husband Ethan Hawke.