Examples from the Web for serration
These flakes were removed alternately from opposite faces, making the serration projections rather sharp.Handbook of Alabama Archaeology: Part I Point Types|James W. Cambron
Shows marked traces of the Chinese forms of the pear in shape, serration, thickness and size of leaf.The Pears of New York|U. P. Hedrick
British Dictionary definitions for serration
less commonly serrature (ˈsɛrətʃə)
Word Origin and History for serration
"condition of being serrated," 1808, noun of state from serrate (adj.).