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
(of leaves) Arranged in opposite pairs on the stem, with each pair at 90 degrees to the preceding pair
term for the crossing of a nerve from one side of the central nervous system to the other; both sensory and motor neurons decussate at different levels of the spinal cord and brainstem, and may project from their crossing to the contralateral cortex
cross or intersect so as to form a cross; "this nerve decussates the other"; "the fibers decussate"
Growing in pairs, each of which is at right angles to the next pair above or below; as, decussated leaves or branches