commissure

noun
com·​mis·​sure | \ˈkä-mə-ˌshu̇r \

Definition of commissure 

1 : a point or line of union or junction especially between two anatomical parts (such as adjacent heart valves)

2 : a connecting band of nerve tissue in the brain or spinal cord

Other Words from commissure

commissural \ˌkä-​mə-​ˈshu̇r-​əl \ adjective

First Known Use of commissure

15th century, in the meaning defined at sense 1

History and Etymology for commissure

Middle English, "suture, seam," borrowed from Middle French & Latin; Middle French, borrowed from Latin commissūra "joint, juncture, seam," from commissus (past participle of committere "to join together") + -ūra -ure — more at commit

Keep scrolling for more

Learn More about commissure

Share commissure

Statistics for commissure

Look-up Popularity

Time Traveler for commissure

The first known use of commissure was in the 15th century

See more words from the same century

Keep scrolling for more

More Definitions for commissure

commissure

noun
com·​mis·​sure | \ˈkäm-ə-ˌshu̇(ə)r \

Medical Definition of commissure 

1 : a point or line of union or junction between two anatomical parts (as the lips at their angles or adjacent heart valves)

2 : a connecting band of nerve tissue in the brain or spinal cord — see anterior commissure, corpus callosum, gray commissure, habenular commissure, hippocampal commissure, posterior commissure — compare massa intermedia

Other Words from commissure

commissural \ˌkäm-​ə-​ˈshu̇r-​əl \ adjective

More from Merriam-Webster on commissure

Britannica.com: Encyclopedia article about commissure

Comments on commissure

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

WORD OF THE DAY

living or existing for a long time

Get Word of the Day daily email!

Test Your Vocabulary

Late Autumn 2018 Words of the Day Quiz

  • frosted-autumn-leaves
  • Which is a synonym of yahoo?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

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!