I think this is a reference to the "foot" of the table leg itself ; sabot is probably an allusion to the wooden shoe (clog/sabot) .
The bottom of a graduated cylinder is flat, so it can sit on a table while you are doing your work.
Look around for a "Sabot" or a "Sunfish" in the USA....
A bottom looks like a bottom it is just that simple
In maths a table is like a graph
it is a table with 8 sides like a HEXAGON.
Like table with no chairs
look at the peridodic table.
It will probably look like a table of figures.
Like a babies bottom...
it looks like a coack
shiny
an s