Source : Webster's Revised Unabridged Dictionary (1913)

Crenulate \Cren"u*late\ (kr?n"?-l?t), Crenulated \Cren"u*la`ted\
   (-l?`t?d), a. [Dim. of crenate.] (Bot.)
   Minutely crenate.

Source : WordNet®

crenulate
     adj : having a margin with small rounded teeth; "a crenulate leaf"
           [syn: {crenulated}]