When a geometry is described by a set of axioms, the notion of a line is usually left undefined (a so-called primitive object). The properties of lines are then determined by the axioms which refer to them.
Definition of mull 1: friable forest humus that forms a layer of mixed organic matter and mineral soil and merges gradually into the mineral soil beneath 2: a finely powdered solid especially in a suspension
Definition of MUSH. 1. : a thick porridge made with cornmeal boiled in water or milk. 2.: something soft and spongy or shapeless. 3. a: weak sentimentality: drivel b: mawkish amorousness.ADVERTISEMENT.efinition of MUSH. 1. : a thick porridge made with cornmeal boiled in water or milk. 2.