= serration, n.

A structure or formation (natural or artificial) consisting of teeth or tooth-like projections; such teeth collectively; dentation, serration.

The condition of being denticulate or finely toothed; usually concrete an instance of this; a series of small teeth or tooth-like projections…

Chiefly Zoology. The condition or character of being pectinate. Also in plural: features resembling the teeth of a comb.

The condition of being serrated; indentation like that of a saw; chiefly concrete and plural, saw-like indentations, the teeth of a serrated edge…

‘the formation of teeth, dentition’ (Worcester, 1846); denticulation (of a margin), perforation of postage stamps.

The condition or fact of being dentate; toothing.

Dentation resembling the teeth of a saw, as of the edge of a leaf, the sutures of the skull; plural the ‘teeth’ of a serrated edge.