Merriam-Webster Logo
SINCE 1828
Menu
×

An Encyclopædia Britannica Company

See What's Trending Now See More Trending Words

diapedesis

play
noun di·a·pe·de·sis \ ˌdī-ə-pə-ˈdē-səs \

Definition of diapedesis

plural diapedeses play \-ˌsēz\
:the passage of blood cells through capillary walls into the tissues

Read the Latest from M-W

alt-59c448f88ea38
Trending: Kim Jong Un: Trump a 'Dotard'
image1644821030
These Are Fighting Words
young-plant-shoots
Merriam-Webster's New Words Quiz—Fall 2017 Edition!
alt-59c52d6ee2f72
Breathing Life Into 'Inspire'

Origin and Etymology of diapedesis

New Latin, from Greek diapēdēsis, literally, act of leaping through, from diapēdan to leap through, from dia- + pēdan to leap

Medical Dictionary

diapedesis

play
noun di·a·pe·de·sis \ ˌdī-ə-pə-ˈdē-səs \

medical Definition of diapedesis

plural diapedeses play \-ˌsēz\
:the passage of blood cells through capillary walls into the tissues — called also emigration
—

diapedetic

play \-ˈdet-ik\ adjective

Seen and Heard

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

show hide

Love words? Need even more definitions?

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

WORD OF THE DAY

yeasty

play

of yeast or being unsettled or frivolous

Get Word of the Day daily email!

TRENDING NOW

  1. dotage, dotard a state or period of senile decay

  2. otherwise "in other respects"

  3. federalism Graham says bill gives power to states

  4. bodega "Don’t mess with the beloved bodega."

  5. carceral Of, relating to, or suggesting a jail or prison

SEE ALL

BROWSE DICTIONARY

diapedesis

Test Your Vocabulary

Merriam-Webster's New Words Quiz—Fall 2017 Edition!

  • young-plant-shoots
  • Which of the following is a new sense of the word bunny?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Dictionary Devil

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!

Words at Play

alt-59c52d6ee2f72
Breathing Life Into 'Inspire'

The word's origins are quite literal

alt-59c4207ecf106
Let's Talk 'Tea'

Spill it, sip it: just make it hot.

image1644821030
8 Words and Phrases from Boxing and Wrestling

Common terms that come from boxing and wrestling

alt-59c2960017c94
The Ambiguity of Pushing 'Up' and 'Back'

When you push a meeting, where does it go?

Ask the Editors

video-title-words-of-the-year-1066
Words of the Year: 1066

Or, Why Pig Meat is Called 'Pork' and Cow Meat is Called 'Beef'

payday
How Often Is 'Biweekly'?

Don't get us started on 'bimonthly'

video-irregardless-grammar-peeve-blend-of-the-synonyms-irrespective-and-regardless
Irregardless

It is in fact a real word (but that doesn't mean you should use it).

video-moose-goose-weird-plurals
Weird Plurals

One goose, two geese. One moose, two... moose. What's up with that?

Word Games

young-plant-shoots
Merriam-Webster's New Words Quiz—Fall 2017 Edition!

You're going to have to memorize the dictionary again.

Take the quiz
stylized-drawing-of-woman-pole-vaulting-across-gap-to-get-trophy
Challenging Vocabulary Quiz Returns!

No tricks, just difficult words.

Take the quiz
Name That Thing
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Take the quiz
Dictionary Devil
Dictionary Devil

The dictionary has been scrambled—can you put it back together?

Play the game