semipermeable membrane
membrane which will allow certain molecules or ions to pass through it by diffusion
separator
permeable membrane placed between the anode and cathode of an electrochemical cell
ion-exchange membrane
semi-permeable membrane that transports certain dissolved ions, while blocking other ions or neutral molecules
biological membrane
selectively permeable membrane that separates the interior of a cell from the external environment or creates intracellular compartments by serving as a boundary between one part of the cell and another