Serration increases a tool's efficiency in cutting or sawing by creating multiple cutting points.

Tool Efficiency

The presence of serration is visually distinct and implies a rough or jagged edge.

Visual Distinction

Serration often evokes images of certain carnivorous animals like sharks, known for serrated teeth.

Associative Imagery

Serration as a process is usually mentioned in manufacturing or crafting contexts.

Manufacturing Process

The action of creating serration requires precise techniques for optimal functionality.

Precision Required

Serration as a process involves altering an object's physical form to enhance function or aesthetics.

Physical Alteration

 Well, if you look closely, you can recognize, actually, from the shape, that these are skull fragments. And then when you look at this, you say, "That's a tooth. It's a big tooth." It's about the size of a banana. It has a big serration on the edge.

Nathan Myhrvold: A life...

 we have here a completely different shape of tooth. Quite pointed, serration is quite sharp. The bull shark's powerful pointed teeth enable it to slice through its victim in one quick lethal motion.