The Collaborative International Dictionary of English v.0.48:
Lattice \Lat"tice\, n. [OE. latis, F. lattis lathwork, fr. latte
lath. See Latten, 1st Lath.]
1. Any work of wood, metal, plastic, or other solid material,
made by crossing a series of parallel laths, or thin
strips, with another series at a diagonal angle, and
forming a network with openings between the strips; as,
the lattice of a window; -- called also latticework.
The mother of Sisera looked out at a window, and
cried through the lattice. --Judg. v. 28.
2. (Her.) The representation of a piece of latticework used
as a bearing, the bands being vertical and horizontal.
3. (Crystallography) The arrangement of atoms or molecules in
a crystal, represented as a repeating arrangement of
points in space, each point representing the location of
an atom or molecule; called also crystal lattice and
Lattice bridge, a bridge supported by lattice girders, or
Lattice girder (Arch.), a girder of which the wed consists
of diagonal pieces crossing each other in the manner of
Lattice plant (Bot.), an aquatic plant of Madagascar
(Ouvirandra fenestralis), whose leaves have interstices
between their ribs and cross veins, so as to resemble
latticework. A second species is Ouvirandra Berneriana.
The genus is merged in Aponogeton by recent authors.