stablefigure
nounUK /ˈsteɪ.bəlˌfɪɡ.ər/
US /ˈsteɪ.bəlˌfɪɡ.jɚ/
A stablefigure is a shape or number that stays the same even when things around it change.
In the puzzle, the triangle was the stablefigure that never moved.
OTHER MEANINGS
2. A person who stays calm and dependable during hard times.
Grandpa was the stablefigure our family relied on.
3. A key number in a math problem that does not change.
The stablefigure in the equation was 10.
4. A firm shape used as a base in building or design.
The square base was the stablefigure for the tower.