Plácido's disk

[ plah-si-dohz ]
/ ˈplɑ sɪˌdoʊz /

noun Ophthalmology.

a device marked with concentric black rings, used to detect corneal irregularities.

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Origin of Plácido's disk

after A. Plácido da Costa (1848–1916), Portuguese ophthalmologist, who devised it
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Medical definitions for placido's disk

Placido's disk
[ plä-sēdōz ]

n.

keratoscope
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.