physical substance (Q28732711)
substance composed of quantum particle(s)/field(s), such as matter and/or radiation; that of which objects/systems are composed; physical stuff that can be considered concrete (not strictly abstract)
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aliases substance (physics)
physically real stuff
matter-energy
matter–energy
description substance composed of quantum particle(s)/field(s), such as matter and/or radiation; that of which objects/systems are composed; physical stuff that can be considered concrete (not strictly abstract)