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

Medical Dictionary

1

sternocleidomastoid

play
noun ster·no·clei·do·mas·toid \ˌstər-nō-ˌklīd-ə-ˈmas-ˌtȯid\

Medical Definition of sternocleidomastoid

  1. :  a thick superficial muscle on each side that arises by one head from the first segment of the sternum and by a second from the inner part of the clavicle, that inserts into the mastoid process and occipital bone, and that acts especially to bend, rotate, flex, and extend the head



Illustration of sternocleidomastoid


2

sternocleidomastoid

adjective ster·no·clei·do·mas·toid

Medical Definition of sternocleidomastoid

  1. :  of, relating to, supplying, or being a sternocleidomastoid <the sternocleidomastoid artery>




Seen and Heard

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

WORD OF THE DAY

February 8, 2016

to clear from accusation or blame

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

pince-nez duvet kittly-benders spindrift
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ