lattice

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. An open framework made of strips of metal, wood, or similar material overlapped or overlaid in a regular, usually crisscross pattern.
2. n. A structure, such as a window, screen, or trellis, made of or containing such a framework.
3. n. Something, such as a decorative motif or heraldic bearing, that resembles an open, patterned framework.
4. n. Physics A regular, periodic configuration of points, particles, or objects throughout an area or a space, especially the arrangement of ions or molecules in a crystalline solid.
5. n. Physics The spatial arrangement of fissionable and nonfissionable materials in a nuclear reactor.
6. v. To construct or furnish with a lattice or latticework.

Century Dictionary and Cyclopedia

1. n. Work with open spaces formed by crossing, interlacing, or joining laths, bars, or rods of wood or metal.
2. n. Anything made of or covered with strips interwoven so as to form a sortof network; specifically, a window, window-blind, or screen made of laths or strips which cross one another like network, so as to leave open interstices. Lattices are used especially when air rather than light is to be admitted. They were once general in England. Also lat-tice-blind, lattice-window.
3. n. In heraldry, a bearing representing a series of perpendicular and horizontal strips crossing one another over the field or a part of it. These strips may be interlaced or not, and if interlaced should be so blazoned. A lattice differs from a surface fretty in being palewise and barwise, while fretty is always bendwise. According to some writers, the lattice should never be Interlaced, and it is allowed by them that the strips may be bendwise, dexter and sinister, the difference between this and a surface fretty being in the circumstance that they do not interlace.
4. To furnish with a lattice.
5. To give the form or appearance of a lattice to.
6. n. In textile-manuf., an apron or a conveyer made of laths or slats, and designed to carry material into a machine or from one machine to another.
7. n. In mathematics, a net made of straight lines, vertical and horizontal, and inclosing rectangular compartments.

Wiktionary

1. n. A flat panel constructed with widely-spaced crossed thin strips of wood or other material, commonly used as a garden trellis.
2. n. crystallography a regular spacing or arrangement of geometric points, often decorated with a motif.
3. n. order theory A partially ordered set in which every pair of elements has a unique supremum and an infimum.
4. n. group theory A discrete subgroup of Rn which spans the real vector space Rn.
5. v. To make a lattice of.
6. v. To close, as an opening, with latticework; to furnish with a lattice.

GNU Webster's 1913

1. n. 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; ; -- called also latticework.
2. n. (Her.) The representation of a piece of latticework used as a bearing, the bands being vertical and horizontal.
3. n. (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 space lattice.
4. v. To make a lattice of.
5. v. To close, as an opening, with latticework; to furnish with a lattice.

WordNet 3.0

1. n. an arrangement of points or particles or objects in a regular periodic pattern in 2 or 3 dimensions
2. n. framework consisting of an ornamental design made of strips of wood or metal
3. n. small opening (like a window in a door) through which business can be transacted