SINCE 1828
risorius
noun
ri·so·ri·us
| \ ri-ˈsōr-ē-əs
, -ˈzȯr-
\
, -ˈzȯr-
\
plural risorii\ -ē-ˌī
\
\
Medical Definition of risorius
: a narrow band of muscle fibers arising from the fascia over the masseter muscle, inserted into the tissues at the corner of the mouth, and acting to retract the angle of the mouth
Comments on risorius
What made you want to look up risorius? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Word Puzzles
-
- Which answer pairs best with each of the following words? living, estate, club, music, road, mile
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
-
Word Puzzles
Challenge yourself with these word puzzles. Can you solve them all?
Take the quiz -
Where in the World? A Quiz
Do you know what languages these words come from?
Take the quiz -
Spell It
Can you spell these 10 commonly misspelled words?
Take the quiz -
Add Diction
Build a chain of words by adding one letter at a time.
Play the game
Share risorius
Resources for risorius