semipermeable

play
adjective semi·per·me·able \-ˈpər-mē-ə-bəl\

Definition of semipermeable

  1. :  partially but not freely or wholly permeable; specifically :  permeable to some usually small molecules but not to other usually larger particles <a semipermeable membrane>

semipermeability

play \-ˌpər-mē-ə-ˈbi-lə-tē\ noun

1888

First Known Use of semipermeable

1888


Medical Dictionary

semipermeable

play
adjective semi·per·me·able \ˌsem-i-ˈpər-mē-ə-bəl, ˌsem-ˌī-\

Medical Definition of semipermeable

  1. :  partially but not freely or wholly permeable; specifically :  permeable to some usually small molecules but not to other usually larger particles <a semipermeable membrane>

semipermeability

\-ˌpər-mē-ə-ˈbil-ət-ē\play noun plural

semipermeabilities


Seen and Heard

What made you want to look up semipermeable? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to decrease in size, extent, or degree

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • alphabet-magnets
  • Which is the correct spelling?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ