variants:
or ep-
Definition of epi-
1
: upon
epiphyte
: besides
epiphenomenon
: attached to
epididymis
: over
epicenter
: outer
epiblast
: after
epigenesis
2a
: chemical entity related to (such) another
epimer
b
: chemical entity distinguished from (such) another by having a bridge connection
epichlorohydrin
Learn More About epi-
Statistics for epi-
Look-up Popularity
Cite this Entry
“Epi-.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/epi-. Accessed 3 Oct. 2022.
Style: MLA
MLA
Chicago
APA
Merriam-Webster
Chicago
APA
Merriam-Webster
Test Your Vocabulary
The Great British Vocabulary Quiz
-
- Named after Sir Robert Peel, what are British police called?
Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
-
Favorite New Words in the Dictionary
Level up your vocabulary with these newly added w...
Take the quiz
-
Name That Thing Mega Quiz!
Test your visual vocabulary!
Take the quiz
-
True or False?
Test your knowledge - and maybe learn something a...
Take the quiz
-
Spelling Bee Quiz
Can you outdo past winners of the National Spelli...
Take the quiz
Share epi-