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Semipermeable vs Permeator - What's the difference?

semipermeable | permeator |

As an adjective semipermeable

is permeable to some things and not to others, as a cell membrane which allows some molecules through but blocks others substances.

As a noun permeator is

a device, containing a semipermeable membrane, used to desalinate water by reverse osmosis.

semipermeable

English

Adjective

(en adjective)
  • Permeable to some things and not to others, as a cell membrane which allows some molecules through but blocks others substances.

    • See also

    * osmosis

    permeator

    English

    Noun

    (en noun)
  • A device, containing a semipermeable membrane, used to desalinate water by reverse osmosis
    • ----