Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A cylindrical saw with teeth on the bottom edge of the cylinder, used for cutting round holes.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A saw in the form of a hollow cylinder with teeth on the end or edge, operated by rotation.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a saw having teeth around the edge of a hollow cylinder

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From its supposed resemblance to a crown (worn on the head).

Examples

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