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Related to semipermeable: semipermeable membrane


 (sĕm′ē-pûr′mē-ə-bəl, sĕm′ī-)
1. Partially permeable.
2. Allowing passage of certain, especially small, molecules or ions but acting as a barrier to others. Used of biological and synthetic membranes.

sem′i·per′me·a·bil′i·ty n.


(Biology) (esp of a cell membrane) selectively permeable
ˌsemiˌpermeaˈbility n


(ˌsɛm iˈpɜr mi ə bəl, ˌsɛm aɪ-)

permeable only to certain small molecules: a semipermeable membrane.
sem`i•per`me•a•bil′i•ty, n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.semipermeable - (of a membrane) selectively permeable
permeable - allowing fluids or gases to pass or diffuse through; "permeable membranes"; "rock that is permeable by water"
References in periodicals archive ?
This consultation regarding the implementation of a borehole measurements probes device to better understand the vertical and lateral flow process through a continuous and concurrent monitoring of different levels permeable and semipermeable composing the aquifer studied in the Demeaux-Roussillon project.
The Alexandria University process uses pervaporation--separating components of a mixture by passing it through a semipermeable membrane and evaporating the liquid--eliminating the need for electricity to pump water by relying on the sun and natural processes of evaporation.
Reverse osmosis: Uses semipermeable membranes to eliminate many substances not removed by adsorption and is the only NSF-certified way to reduce nitrates and fluoride.
A semipermeable occlusive drape covers the dressing, promoting thermoregulation of the area and maintaining moisture within the wound bed (Huang et al.
For the interaction storage condition vs package type, there was a reduction in moisture content when the seed were kept in both permeable and semipermeable packages and placed under 20[degrees]C/55% RH and 15[degrees]C/45% RH.
Se realizan dos tipos de curas: 1) manipulacion/cura en cada sesion (cura diaria: CD), realizada en CnT o CT con OS dudoso o infectado y, 2) manipulacion/ cura semanal (CS) en CT, con aposito transparente y semipermeable, que permite observar el estado del OS.
La membrana actua como una barrera semipermeable y la separacion ocurre porque la membrana controla la cantidad de movimiento de varias moleculas entre las fases.
The concept that a thin film can be impervious and block liquid, while allowing outward moisture transmission is understood by anyone who has taken a biology class and learned about cellular semipermeable membranes.
The use of semipermeable dressings in fingertip injuries.
Implantable just beneath the skin, the postage-stamp-size device has semipermeable membranes designed to protect the cells from attack by the immune system while still allowing the insulin produced by the cells to pass through the device to the body.
2014b), the heat and moisture are transferred between air and desiccant solution streams through microporous semipermeable membranes, which prevent the carryover problem.
8) These authors treated the wood as a semipermeable membrane that allowed for oxygen diffusion according to Fick's law.