Webster dictionary was developed by Noah Webster in the beginning of 19th century. On this website, you can find definition for disk from the 1913 edition of Webster's Revised Unabridged Dictionary. Define disk using one of the most comprehensive free online dictionaries on the web.

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disk
Part of Speech: noun
Results: 10
1. A discus; a quoit.
2. A flat, circular plate; as, a disk of metal or paper.
3. The circular figure of a celestial body, as seen projected of the heavens.
4. A circular structure either in plants or animals; as, a blood disk; germinal disk, etc.
6. The central part of a radiate compound flower, as in sunflower.
8. The anterior surface or oral area of coelenterate animals, as of sea anemones.
9. The lower side of the body of some invertebrates, especially when used for locomotion, when it is often called a creeping disk.
10. In owls, the space around the eyes.
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