crenate
adjective
cre·nate ˈkrē-ˌnāt 
variants or crenated
ˈkrē-ˌnā-təd
: having the margin or surface cut into rounded scallops
a crenate leaf
Word History
Etymology
borrowed from New Latin crenātus, probably Latinization of Middle French crené, past participle of crener "to mark with a notch," derivative of cren, cran "notch" — more at crenellated
First Known Use
1688, in the meaning defined above