lat·tice (l t  s)n. 1. a. An open framework made of strips of metal, wood, or similar material overlapped or overlaid in a regular, usually crisscross pattern. b. A structure, such as a window, screen, or trellis, made of or containing such a framework. 2. Something, such as a decorative motif or heraldic bearing, that resembles an open, patterned framework. 3. Physics a. 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. b. The spatial arrangement of fissionable and nonfissionable materials in a nuclear reactor. tr.v. lat·ticed, lat·tic·ing, lat·tic·es To construct or furnish with a lattice or latticework. [Middle English latis, from Old French lattis, from latte, lath, of Germanic origin .] lat ticed adj. |
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