释义 |
semipermeable
sem·i·per·me·a·ble S0256900 (sĕm′ē-pûr′mē-ə-bəl, sĕm′ī-)adj.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.semipermeable (ˌsɛmɪˈpɜːmɪəbəl) adj (Biology) (esp of a cell membrane) selectively permeable ˌsemiˌpermeaˈbility nsem•i•per•me•a•ble (ˌsɛm iˈpɜr mi ə bəl, ˌsɛm aɪ-) adj. permeable only to certain small molecules: a semipermeable membrane. [1895–1900] sem`i•per`me•a•bil′i•ty, n. ThesaurusAdj. | 1. | semipermeable - (of a membrane) selectively permeablepermeable - allowing fluids or gases to pass or diffuse through; "permeable membranes"; "rock that is permeable by water" | Translationssemipermeable
semipermeable (esp of a cell membrane) selectively permeable semipermeable
semipermeable [sem″e-per´me-ah-bl] permitting passage only of certain molecules.sem·i·per·me·a·ble (sem'ē-per'mē-ă-bĕl), 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 (for example, a cell membrane), or merely impermeability to very large molecules such as proteins (for example, a capillary membrane).semipermeable (sĕm′ē-pûr′mē-ə-bəl, sĕm′ī-)adj.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.sem·i·per·me·a·ble (sem'ē-pĕr'mē-ă-bĕl) Freely permeable to water (or other solvent) but relatively impermeable to solutes. semipermeable Able to allow the passage of molecules below a certain size and to retain those above this size. Much of PHYSIOLOGY depends on the semipermeability of body membranes.sem·i·per·me·a·ble (sem'ē-pĕr'mē-ă-bĕl) Freely permeable to water (or other solvent) but relatively impermeable to solutes. semipermeable Related to semipermeable: semipermeable membraneWords related to semipermeableadj (of a membrane) selectively permeableRelated Words |