1. one of the sharp pointed teeth of a saw
2. something having a zigzag shape resembling the teeth of a saw

1. having a zigzag edge or pattern like the teeth of a saw

Examples

• The carpenter replaced the broken sawtooth on his handsaw.
• The mountain range had a distinctive sawtooth silhouette against the sky.
• The graph showed a sawtooth pattern of rising and falling values.
• She cut the paper with sawtooth edges for decoration.
• The sawtooth roof design allows for better natural lighting.
• The fabric had a sawtooth border along the hem.