Intervertebral foramen: An opening between vertebrae through which nerves leave the spine and extend to other parts of the body. Also called a neural foramen.
There are basically three different types of apartment size refrigerators based on capacity: The smallest one is the compact cube refrigerator (1.5 to 2.7 cu ft). The next is the compact refrigerator with a capacity of 3.5 to 6 cu ft.
Cubic feet. If you took boxes that are 1 cubic foot (1 foot tall, 1 foot wide and 1 foot deep), your refrigerator would hold 22 of them (if you removed the shelves and drawers). That's not huge, but a decent size for a fridge.