rachio-, rachi-, rach-, rachis-, rhach-, rhachi-, rhachio-

(Greek > Latin: spine, backbone)

rachisensibility (s) (noun), rachisensibilities (pl)
The ability to detect prey or objects by scent: The trained dogs exhibited a high degree of rachisensibilities and were sent out to find the lost children.
rachitis
rhachialgia
1. A pain affecting the spine.
2. Pain in the spine; especially, neuralgic pain.
rhachiomyelitis
rhachitis