aquaporin

noun
aqua·​por·​in | \ ˌa-kwə-ˈpȯr-ən How to pronounce aquaporin (audio) \

Medical Definition of aquaporin

: any of several proteins that are found in cell membranes and selectively permit water to pass into and out of the cell Several scientific groups are now directing their attention to the aquaporins, a large family of water transport molecules whose members each have unique tissue distributions in kidney.— Peter Agre, Proceedings of the National Academy of Science, August 1998 Water passes through the cell membrane via channels called aquaporins. These channels are so small that water molecules travel through in single file, while larger molecules cannot enter.— Julie Rehmeyer, New Scientist, 1 July 2006

Learn More about aquaporin

Cite this Entry

“Aquaporin.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/aquaporin. Accessed 6 Aug. 2020.

Comments on aquaporin

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

WORD OF THE DAY

Test Your Vocabulary

July 2020 Words of the Day Quiz

  • papercraft sunset
  • Which is a synonym of mien?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

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

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!