crenulation

/ˌkrɛnjəˈleɪʃən/
noun
  1. A small, rounded notch or scalloped edge, especially on a leaf, shell, or other natural object.
    • The fossil's crenulations helped scientists identify it as a type of ancient coral.
    • The leaf's edge had tiny crenulations that made it look like a miniature saw.
    • Under the microscope, the shell showed delicate crenulations along its rim.
  2. A decorative pattern of repeated rounded indentations, often on architecture or furniture.
    • The old stone wall was topped with crenulations that gave it a castle-like appearance.
    • The architect added crenulations to the roofline for a more medieval look.
    • The wooden cabinet had crenulations carved along its top edge.
What does "crenulation" mean? | whatsthatwordmean | whatsthatwordmean