Level .
having an even and horizontal surface of a shape
level
A plane surface.
A flat, even surface is commonly referred to as a "plane." In mathematical terms, a plane is defined as a two-dimensional surface that extends infinitely in all directions and has no curvature. In everyday language, it can also be described as a "level surface" or "flat surface."
There is no real world flat surface which goes on forever. It is a geometric idealised concept. So, since there is not even a first such thing, there cannot be another.
level
having an even and horizontal surface of a shape
level
A plane surface.
even ? when something is flat and level it is often referred to as an even surface.
A flat, even surface is commonly referred to as a "plane." In mathematical terms, a plane is defined as a two-dimensional surface that extends infinitely in all directions and has no curvature. In everyday language, it can also be described as a "level surface" or "flat surface."
level
flat and even
an island
If a surface is flat, then all the points on that surface will lie in a single "Plane". Any number of lines connecting the points on the surface will all lie within this same Plane. This is basically a Mathematical Definition. I have never heard of a "scientific" meaning before.
Level is a palindrome meaning flat or even.
It does not have a flat surface.