arborization noun. 
[,ɑ:b(ǝ)rʌɪ'zeɪʃ(ǝ)n] Also 
arborisation. 
L18.[formed as ARBORIST + -IZATION.](The production of) a treelike structure or appearance; 
esp. (
Anatomy) the ramification of the ends of certain nerve cells.
 ■   'arborize verb (a) verb trans. make treelike in structure or appearance (chiefly as
 ■   arborized ppl adjective); 
(b) verb intrans. develop arborization: 
E19.  [TahlilGaran] English Dictionary ▲