Decussate v. t. : To cross at an acute angle; to cut or divide in the form of X; to intersect; -- said of lines in geometrical figures, rays of light, nerves, etc.

Decussate a. : Alt. of Decussated

Example:
Do cranial nerves and tracts Decussate?

Taxonomy
Decussation, free encyclopedia, cross, rods, enamel, decussate, search, biological contexts, the brain, nerve fibers, pattern, leaves, leaf, pairs, perpendicular, bundles, structural unit, outer enamel.

Defination from the web:
Decussate) Jump to: navigation, search ... In phyllotaxis when an opposite pattern of leaves has successive leaf pairs that are perpendicular, it is called decussate. ...