commissure /komˈi-sūr/

1. A joint
2. A joining surface
3. A bundle of nerve fibres connecting two nerve centres, eg those crossing the midline of the central nervous system

commissūˈral adjective

• spinulous
• spiny
• spiny anteater
• spiny anteaters
• spiny lobster
• spiny lobsters
• spir-
• spiracle
• spiracles
• spiracula
• spiracular
• spiraculate
• spiraculum
• spiraea
• spiraeas
• spiral
• spiral arm
• spiral arms
• spiral binding
• spiral bound
• spiraled
• spiral fracture
• spiral fractures
• spiral galaxies
• spiral galaxy