Dictionary.com

semipermeable

[ sem-ee-pur-mee-uh-buhl, sem-ahy- ]
/ ˌsɛm iˈpɜr mi ə bəl, ˌsɛm aɪ- /
Save This Word!

adjective

permeable only to certain small molecules: a semipermeable membrane.

QUIZZES

QUIZ YOURSELF ON "EVOKE" VS. "INVOKE"!

Call upon your favorite grammar inspirations to tackle this quiz on the differences and uses of "evoke" and "invoke."
Question 1 of 7
“Evoke” and “invoke” both derive from the same Latin root “vocāre.”

Meet Grammar Coach

Write or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing

Meet Grammar Coach

Improve Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of semipermeable

First recorded in 1895–1900; semi- + permeable

OTHER WORDS FROM semipermeable

sem·i·per·me·a·bil·i·ty, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use semipermeable in a sentence

British Dictionary definitions for semipermeable

semipermeable
/ (ˌsɛmɪˈpɜːmɪəbəl) /

adjective

(esp of a cell membrane) selectively permeable

Derived forms of semipermeable

semipermeability, 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

Medical definitions for semipermeable

semipermeable
[ sĕm′ē-pûrmē-ə-bəl, sĕm′ī- ]

adj.

Partially permeable.
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.
FEEDBACK