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| barrier in isotope separation; slide | |||
| membrane A thin tissue that encloses or lines biological cells, organs, or other structures. It consists of a double layer of lipids with protein molecules between the two layers. Membranes are permeable to water and fat-soluble substances but not to such polar molecules as sugars | |||
| envelope | |||
| membrane (septum); pellicula; pellicle; diaphragm (septum); partition (septum); dividing wall (septum); veil (velum); lamina; plate; coat (tunica); tunic (tunica); cuticle; cuticular border | |||
| diaphragm | |||
| membrana: 726 phrases in 25 subjects |