noun
reticulation
rih-tik-yuh-LAY-shun/rɪˌtɪkjəˈleɪʃən/
A netlike pattern or its formation.
A fine reticulation of veins covers the surface of each leaf.

Etymology
The 'little net' supplies the image of intersecting lines or veins. Reticulation names the resulting netlike pattern or arrangement, rather than necessarily an actual net.
In context
also sanded certain areas back so it's a mixture of reticulation and some smoother sections
More examples
- The giraffe's coat shows a clear reticulation of pale lines.
- Fine cracks create reticulation in the pottery glaze.
- Under a microscope, the wing's reticulation is easy to see.
Forms
reticulation · reticulations
reticulate adjective — Having a pattern like a net.