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

epididymis

play
noun ep·i·did·y·mis \ˌe-pə-ˈdi-də-məs\

Definition of epididymis

plural epididymidesplay \-mə-ˌdēz\

  1. :  a system of ductules emerging posteriorly from the testis that holds sperm during maturation and that forms a tangled mass before uniting into a single coiled duct which is continuous with the vas deferens

epididymal play \-məl\ adjective


Origin of epididymis

New Latin, from Greek, from epi- + didymos testicle, twin, from dyo two — more at two


First Known Use: 1610


Medical Dictionary

epididymis

play
noun ep·i·did·y·mis \ˌep-ə-ˈdid-ə-məs\

Medical Definition of epididymis

plural epididymides \-mə-ˌdēz\play

  1. :  a system of ductules that emerges posteriorly from the testis, holds sperm during maturation, and forms a tangled mass before uniting into a single coiled duct which comprises the highly convoluted body and tail of the system and is continuous with the vas deferens—see vasa efferentia

epididymal \-məl\play adjective


Illustration of epididymis


Learn More about epididymis


Seen and Heard

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

WORD OF THE DAY

marked by propriety and good taste

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

oily prompt angry maudlin
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