Webster's Revised Unabridged Dictionary · 1913

Crenature

Crenature (kr?n"?-t?r o kr?"n?-; 135) , noun

1.
(Botany) A rounded tooth or notch of a crenate leaf, or any part that is crenate; -- called also crenelle.
2.
The state of being crenated or notched.