A bundle of nerve fibers passing from one side to the other of the brain or spinal cord.

Roget 43: junction; joining etc. v.; joinder [Law], union connection, conjunction, conjugation; annexion^†, annexation, annexment^†; astriction^†, attachment, compagination^†, vincture^†, ligation, alligation^†; accouplement^†; marriage etc. (wedlock,) 903; infibulation^†, inosculation^†, symphysis [Anat.], anastomosis, confluence, communication, concatenation; meeting, reunion; assemblage etc. 72.    coition, copulation; sex, sexual congress, sexual conjunction, sexual intercourse, love-making.    joint, joining, juncture, pivot, hinge, articulation, commissure^†, seam, gore, gusset, suture, stitch; link etc. 45; miter mortise.    closeness, tightness, etc. adj.; coherence etc. 46; combination etc. 48.    annexationist.    ... show more