Longman Dictionary of Contemporary English homepage

permeable

 adjective
     
per‧me‧a‧ble technical
CS material that is permeable allows water, gas etc to pass through it [≠ impermeable]:
the permeable cell membrane
—permeability noun [uncountable]
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary

Browse the dictionary