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Definition of Semipermeable
1. Adjective. (of a membrane) selectively permeable.
Similar to: Permeable
Definition of Semipermeable
1. [adj]
Medical Definition of Semipermeable
1. Freely permeable to water (or other solvent) but relatively impermeable to solutes. Depending on the context, it has been used to imply impermeability to all solutes except very small uncharged molecules (e.g., a cell membrane), or merely impermeability to very large molecules such as proteins (e.g., a capillary membrane). (05 Mar 2000)
Lexicographical Neighbors of Semipermeable
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