As the title says; let's say you carve a piece of wood with a circle design What is that shallow part (the part you carved) called? I keep thinking blood grooves, but I know that ain't right? Funnels? Recess? None of these sound correct and Google isn't helping
A blood groove is what's in certain large knives and swords. I would think if you carve or chisel something like a line it could just be called a groove? Rogets lists these as synonyms for groove: furrow rut trench channel indentation Or, if it isn't a circular line but a disc-shape, it could be called a depression or a recessed shape.