[ 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.
Cyclone, Typhoon, Hurricane: Are They All The Same?Hurricane travels a convoluted road through the Spanish furacão, back to the Mayan god Huracan, a deity of storms and fire.
Related formssem·i·per·me·a·bil·i·ty, noun
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Examples from the Web for semi-permeable
The term "osmotic membrane" should therefore in all cases replace that of "semi-permeable membrane."The Mechanism of Life|Stphane Leduc
British Dictionary definitions for semi-permeable
/ (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 semi-permeable
[ 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.