ser·ru·late 
(sĕryə-lĭt, -lāt′, sĕrə-) also ser·ru·lat·ed (-lā′tĭd)
(sĕryə-lĭt, -lāt′, sĕrə-) also ser·ru·lat·ed (-lā′tĭd)adj.
Having very small sawlike projections on the margin: a serrulate leaf.
[New Latin serrulātus, from Latin serrula, diminutive of serra, saw.]