spinalcolumns
nounUK /ˈspaɪ.nəl ˈkɒl.əmz/
US /ˈspaɪ.nəl ˈkɑː.ləmz/
The line of small bones that runs down the middle of your back.
The doctor checked the boy's spinal columns to make sure his back was healthy.
OTHER MEANINGS
2. The main supporting part of something, like the central structure of a building or idea.
The spinal columns of the old bridge were made of strong steel.
3. The central line of a book's pages where they are joined together.
She wrote her name along the spinal columns of her notebooks.
4. The main stem or central part of a plant or object.
The spinal columns of the tall grass bent in the wind.