tessellation
/ˌtesɪˈleɪʃən/noun
mass noun
1- the process, art, or state of covering a surface or being covered with an arrangement of small pieces that fit closely together but do not overlap, especially in the construction of a mosaic棋盘花纹镶嵌（术）, 马赛克铺设（术）。
1.1
- count noun an arrangement of polygons without gaps or overlapping, especially in a repeated pattern棋盘花纹。