Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

ultrafiltration

play
noun ul·tra·fil·tra·tion \ˌəl-trə-fil-ˈtrā-shən\

Definition of ultrafiltration

  1. :  filtration through a medium (as a semipermeable capillary wall) which allows small molecules (as of water) to pass but holds back larger ones (as of protein)

ultrafiltrate

play \-ˈfil-ˌtrāt\ noun


1908

First Known Use of ultrafiltration

1908


Medical Dictionary

ultrafiltration

play
noun ul·tra·fil·tra·tion \ˌəl-trə-fil-ˈtrā-shən\

Medical Definition of ultrafiltration

  1. :  filtration through a medium (as a semipermeable capillary wall) which allows small molecules (as of water) to pass but holds back larger ones (as of protein)




Learn More about ultrafiltration


Seen and Heard

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

WORD OF THE DAY

to destroy or remove completely

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

two-chairs-on-a-pier-by-the-ocean-in-summer

Which of the following words means “of or relating to summer”?

brumal estival vernal hiemal
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