opeidoscope
nounDefinition of opeidoscope
: an instrument consisting essentially of a tube across one end of which is stretched a thin flexible membrane bearing a small mirror and used for exhibiting upon a screen by rays reflected from the mirror vibratory motions caused by sounds
Keep scrolling for more
Comments on opeidoscope
What made you want to look up opeidoscope? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Great Scrabble Words—A Quiz
-
- Which of the following Q-without-U words means the number five in cards or dice?
Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
-
Great Scrabble Words—A Quiz
Words to improve your Scrabble game
Take the quiz -
Which Came First? Quiz
Do you know which word is older?
Take the quiz -
Name That Thing
Test your visual vocabulary with our 10-question challenge!
Take the quiz -
SCRABBLE® Sprint
SCRABBLE® fans, sharpen your skills!
Play the game
Share opeidoscope
Resources for opeidoscope