Did you mayhaps mean arborist?
“The axons passing from the cerebral cortex terminate at different levels in the cord by breaking up into dendrites which arborise around the cells on the grey matter of the posterior horns -- this system of cells, axons, and dendritic processes forming an _upper neurone_.”
“The axis cylinder of one cell ends in a number of fine filaments which arborise around another nerve-cell, thus bringing it into physiological, if not anatomical, relationship with the first cell.”
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