Look up serration or serrate in Wiktionary, the free dictionary.

Serration may refer to:

• A notch on a serrated blade
• Serrate (botany), a term used to describe a toothed leaf margin or other plant part
• Serrate radar detector, used in World War II by the Allies to track German planes equipped with Lichtenstein radars
• The shape of certain leaf margins
• An airframe shape used in stealth aircraft
• The profile of a screw thread cross section in extrusion
• The cutting edge on the teeth of some species, usually sharks

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