semipermeable

/หŒsษ›maษช-/

IPA: /S EH0 M AY0 P ER1 M IY0 AH0 B AH0 L/

adjective
  1. 1

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

Source: https://en.wiktionary.org/wiki/semipermeable