Nearby Words
adjective
1.
not permeable; impassable.
2.
Chemistry, Geology. (of porous substances, rocks, etc.) not permitting the passage of a fluid through the pores, interstices, etc.
Related forms
im·per·me·a·bil·i·ty, im·per·me·a·ble·ness, noun
im·per·me·a·bly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source
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Link To impermeable
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Impermeable
is a GRE word you need to know.
So is imperative. Does it mean:
| imploding |
| absolutely necessary or required |
Example Sentences
- But during the winter, increased amounts of sea ice renders the region virtually impermeable to all three.
- Imagine using millions of gallons of fresh water down an impermeable oil well to purge out the leftover oil.
- But inevitably the script stands before her, upright and impermeable.
Collins
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History
impermeable
1697, from Fr. imperméable, from L.L. impermeabilis, from in- "not" + permeabilis (see permeable).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary
impermeable im·per·me·a·ble (ĭm-pûr'mē-ə-bəl)
adj.
Impossible to permeate; not permitting passage.
im·per'me·a·bil'i·ty or im·per'me·a·ble·ness n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
impermeable  (ĭm-pûr'mē-ə-bəl) Pronunciation Key
Relating to a material through which substances, such as liquids or gases, cannot pass. Some substances, such as some types of contact lenses, are permeable to gas but impermeable to liquid. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Word Dynamo Rating For Impermeable
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