masson-disk

Masson disk

[mas-uhn]
noun
a white disk on which a series of concentric gray circles appear to vanish intermittently when the disk is rotated, used for testing a person's fluctuation of attention and visual threshold.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To masson-disk
Explore Dictionary.com
Previous Definition: masson disk
Next Definition: massoola boat
Words Near: masson-disk
More from Thesaurus.com
Synonyms and Antonyms for masson-disk
More from Reference.com
Search for articles containing masson-disk
More from Dictionary.com Translator
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature