phoropter
Word Rarity
Very rare
Frequency: Zipf frequency 0.00 in modern English
16
Scrabble Score
9
Letters
1
Syllables
6
Unique Chars
Meaning
noun
An instrument used in eye examinations to determine an individual's prescription, the patient looking through various lenses at a chart on the other side.
Example Sentences
- "Testing includes using a pen or finger to test for the “near point of convergence,” as well as a phoropter, which uses lenses and prisms to test the eyes’ ability to work together."
Etymology
From a trademark.