[ sem-ee-pur-mee-uh-buh l, sem-ahy- ]
/ ˌsɛm iˈpɜr mi ə bəl, ˌsɛm aɪ- /
permeable only to certain small molecules: a semipermeable membrane.
Related formssem·i·per·me·a·bil·i·ty, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for semipermeable
Water has to be pushed through a semipermeable membrane that blocks the salt and other impurities from going through.Sun+Water= High Tech Caribbean Luxury At The Cusinart Resort|The Daily Beast|June 11, 2014|DAILY BEAST
Similarly the diffusion of sols through "semipermeable" membranes is affected by lyotrope influence.Animal Proteins|Hugh Garner Bennett
British Dictionary definitions for semipermeable
/ (ˌsɛmɪˈpɜːmɪəbəl) /
(esp of a cell membrane) selectively permeable
Derived Formssemipermeability, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medicine definitions for semipermeable
[ sĕm′ē-pûr′mē-ə-bəl, sĕm′ī- ]
Allowing passage of certain, especially small, molecules or ions but acting as a barrier to others. Used of biological and synthetic membranes.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.