tes·sel·late (ts-lt)
tr.v. tes·sel·lat·ed, tes·sel·lat·ing, tes·sel·lates
To form into a mosaic pattern, as by using small squares of stone or glass.
[From Latin tesselltus, of small square stones, from tessella, small cube, diminutive of tessera, a square; see tessera.]
or from MerriamWebster here
http://www.merriam-webster.com/dictionary/tessellation
so shapes such as hexagons and apple cores automatically tessellate.