All 3 Uses

serrated
in
City of Glass
(Auto-generated)

It was blind, she saw, a thick line of serrated teeth running like a zipper across its forehead where eyes should be.†
Chpt 10 *

serrated = having points along the edge -- like a saw, some knives, and some leaves
Isabelle felt as if she were trapped behind a glass wall, able to see everything but unable to move—watching, frozen, as a demon seized a fleeing boy and lifted him bodily off the ground, sinking its serrated teeth into his shoulder.†
Chpt 10
The Behemoth began a last, desperate series of convulsive spasms, its serrated jaws clacking together as it thrashed—and then it was gone, only a viscous puddle of green fluid steaming on the cobblestones where it had been.†
Chpt 11

Definitions:

(1) (serrated)
having points along the edge -- like a saw, some knives, and some leaves
(2) (meaning too rare to warrant focus)