Cubatures is a 9 letter English word. It's valid Scrabble word worth 12 points. It's valid Words with friends word worth 16 points.
You can make 537 anagrams from letters in cubatures (abcerstuu).
1670-80; cube1 + -ature, after quadrature
This first result, multiplied by itself and by the height, gives the cubature of the tree.