semipermeable
/ˌsɛmiˈpɜrmiəbəl/
adjective
- Allowing some substances to pass through but not others, especially used for membranes or barriers.
- The lab used a semipermeable filter to separate salt from seawater.
- A semipermeable membrane allows water molecules to pass but blocks larger particles.
- Cell walls are semipermeable, controlling what enters and leaves the cell.
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