I found this at healthtap.com

A foramen (meaning "window") is an opening that allows a nerve root from your spinal cord to pass through. At each level of your spine, you have two foramina -- one on each side -- that permit the nerves from that particular level to emerge from the spinal canal and travel to whatever structures they supply. The uncinate process is a hook-shaped bony lump that protrudes upward from each side of the upper surface of the vertebrae in your neck. The uncinate process normally forms one edge of a foramen; when the uncinate process becomes hypertrophic (enlarged) -- usually due to arthritis -- it narrows the foramen, thereby providing less room for the nerve root to pass through. In some cases, uncinate hypertrophy can cause pinching of the nearby nerve root. In short, then, "foraminal stenosis from uncinate process hypertrophy" means the opening for one of the nerve roots in your neck is being crowded by an enlarged bony projection (a bone spur, if you will).

https://www.healthtap.com/user_quest...hy-on-the-left