crenulation

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cren·u·late

C0739700 (krĕn′yə-lĭt, -lāt′) or cren·u·lat·ed (-lā′tĭd)adj. Having a margin or contour with shallow, usually rounded notches and projections; finely notched or scalloped: a crenulate leaf; a crenulate coastline.
[New Latin crēnulātus, from crēnula, diminutive of Medieval Latin crēna, notch.]
cren′u·la′tion n.

crenulation

(ˌkrɛnjʊˈleɪʃən) n1. (Biology) any of the teeth or notches of a crenulate structure2. (Biology) a crenulate formation

cren•u•la•tion

(ˌkrɛn yəˈleɪ ʃən)

n. 1. a minute crenation. 2. the state of being crenulate. [1840–50]