Placido disk
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Placido disk — Pla·ci·do disk (plahґse do) [Antonio Placido da Costa, Portuguese ophthalmologist, 1848–1916] see under disk … Medical dictionary
disk — 1. A round, flat plate; any approximately flat circular structure. 2. SYN: lamella (2). 3. In dentistry, a circular piece of thin paper or other material, coated with an abrasive substance, used for cutting and polishing tee … Medical dictionary
Plácido's disk — /plah si dohz /, Ophthalm. a device marked with concentric black rings, used to detect corneal irregularities. [after A. Plácido da Costa (1848 1916), Portuguese ophthalmologist, who devised it] * * * … Universalium
Plácido's disk — /plah si dohz /, Ophthalm. a device marked with concentric black rings, used to detect corneal irregularities. [after A. Plácido da Costa (1848 1916), Portuguese ophthalmologist, who devised it] … Useful english dictionary
Placido da Costa — Antonio, Portuguese ophthalmologist, 1848–1916. See P. disk … Medical dictionary
disco de Plácido — Eng. Placido s disk Ver queratoscopio … Diccionario de oftalmología
keratoscope — An instrument marked with lines or circles by means of which the corneal reflex can be observed. SYN: Placido da Costa disk. [kerato + G. skopeo, to examine] * * * ker·a·to·scope ker ət ō .skōp n an instrument for examining the cornea esp. to… … Medical dictionary
Corneal topography — Intervention A corneal topogram of an eye affected by keratoconus. Blue shows the flattest areas, and red the steepest. MeSH … Wikipedia
music — musicless, adj. /myooh zik/, n. 1. an art of sound in time that expresses ideas and emotions in significant forms through the elements of rhythm, melody, harmony, and color. 2. the tones or sounds employed, occurring in single line (melody) or… … Universalium
List of Yu-Gi-Oh! 5D's characters — The following is a list of characters from the Yu Gi Oh! 5D s anime series. Where appropriate, names from the original Japanese media are on the right while the English names are on the left. Character descriptions pertain to the original… … Wikipedia
