a single notch in a row of notches; "one of the serrations was broken off" a row of notches; "the pliers had serrations to improve the grip" the condition of being serrated; "the serrations of a city skyline
The condition where the margins of a leaf (or leaflet) have small jagged projections; examples include the leaves of Hackberry A doubly serrated leaf has fine serrations that occur on the edges of larger serrations; an example is the leaf of American Elm A leaf (or leaflet) that has smooth margins is called "entire", such as in Pawpaw