The Collaborative International Dictionary
Serrulate
Serrulate \Ser"rulate\, Serrulated \Ser"ru*la`ted\, a. [L. serrula a little saw, dim. of serra a saw.] Finely serrate; having very minute teeth.
Wiktionary
serrulate
a. Minutely serrate.
WordNet
serrulate
adj. minutely serrated