Well taken from dictionary.com
chak·ra Audio pronunciation of "chakra" ( P ) Pronunciation Key (chkr)
n.
One of the seven centers of spiritual energy in the human body according to yoga philosophy.
That about fits the bill and is what we used originally
However,
Naruto zealots insist that the correct spelling is Chakura based on manga/anime/japanese folk lore. So we changed it to that.
I have seen both terms used interchangeably online, so either should be fine.
