Bravais lattice

Etymology
Studied by Auguste Bravais.

Noun

 * 1)  An infinite array of discrete points generated by a set of discrete translation operations $$\mathbf{R} = n_{1}\mathbf{a}_{1} + n_{2}\mathbf{a}_{2} + n_{3}\mathbf{a}_{3}$$, where ni are any integers and ai are known as the primitive vectors which lie in different directions and span the lattice.