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a group of atoms joined by chemical bonds; the smallest amount of a substance that possesses its characteristic properties.
adhesion m's (cell adhesion m's (CAM)) cell surface glycoproteins that mediate intercell adhesion in vertebrates.
middle molecule any molecule that has an atomic mass between 350 and 2000 daltons; these accumulate in the body fluids of patients with uremia.
A molecule having a size of at least 500 daltons (Da) and no more than 30,000 Da, presumed to be an endogenous poison that accumulates in the body of patients with chronic kidney disease or uremia. Clearance of these molecules is a goal of hemodialysis. Synonym: middle-molecular-weight solute