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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Which of the following animal names traces its immediate origin to Portuguese?

Origin of Plácido's disk

After A. Plácido da Costa (1848–1916), Portuguese ophthalmologist, who devised it

Words nearby Plácido's disk

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Medical definitions for Plácido'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.