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.
a.
- Crossed; intersected.
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(Bot.) Growing in pairs, each of which is at right angles to the next pair above or below;
as, .decussated leaves or branches -
(Rhet.) Consisting of two rising and two falling clauses, placed in alternate opposition to each other;
as, a .decussated period