S: (n) backbone (the part of a network that connects other networks together) "the backbone is the part of a communication network that carries the heaviest traffic"
S: (n) fabric, cloth, material, textile (artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers) "the fabric in the curtains was light and semitransparent"; "woven cloth originated in Mesopotamia around 5000 BC"; "she measured off enough material for a dress"
S: (n) ylem ((cosmology) the original matter that (according to the big bang theory) existed before the formation of the chemical elements)
S: (n) dark matter ((cosmology) a hypothetical form of matter that is believed to make up 90 percent of the universe; it is invisible (does not absorb or emit light) and does not collide with atomic particles but exerts gravitational force)
S: (n) antimatter (matter consisting of elementary particles that are the antiparticles of those making up normal substances)
S: (n) glop (any gummy shapeless matter; usually unpleasant)
S: (n) fluid (continuous amorphous matter that tends to flow and to conform to the outline of its container: a liquid or a gas)
S: (n) system ((physical chemistry) a sample of matter in which substances in different phases are in equilibrium) "in a static system oil cannot be replaced by water on a surface"; "a system generating hydrogen peroxide"
S: (n) residue (matter that remains after something has been removed)
S: (n) solid (matter that is solid at room temperature and pressure)
S: (n) solute (the dissolved matter in a solution; the component of a solution that changes its state)
S: (n) emanation (something that is emitted or radiated (as a gas or an odor or a light, etc.))
S: (n) process, physical process (a sustained phenomenon or one marked by gradual changes through a series of states) "events now in process"; "the process of calcification begins later for boys than for girls"
S: (n) substance (material of a particular kind or constitution) "the immune response recognizes invading substances"