from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A type of slide chart, a paper construction with rotating parts, formerly used for organization and calculation in astronomy and other subjects.

from The Century Dictionary and Cyclopedia

  • n. A small and generally circular movable plate affixed to an engraving containing a dial or lottery, and made to carry the index-hand or pointer; any movable engraving superimposed on another for the purpose of showing variations.


Sorry, no etymologies found.



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