1. to intersect in the form of an X; to cross at an angle
Usage: formal; technical

1. arranged in pairs with each pair at right angles to the next pair
Usage: botany; technical

Examples

• The two roads decussate at the town center.
• The nerve fibers decussate in the brainstem.
• The plant has decussate leaves arranged in opposite pairs.
• The architect designed the beams to decussate for structural support.
• Decussate leaf arrangement is common in many flowering plants.
• The pathways decussate before reaching their final destination.