the insoluble problem of constructing a cube having twice the volume of a given cube, using only a ruler and compass.
[noun, adjective doo-pli-kit, dyoo-; verb doo-pli-keyt, dyoo-] /noun, adjective ˈdu plɪ kɪt, ˈdyu-; verb ˈdu plɪˌkeɪt, ˈdyu-/ noun 1. a copy exactly like an original. 2. anything corresponding in all respects to something else. 3. Cards. a duplicate game. verb (used with object), duplicated, duplicating. 4. to make an exact copy of. 5. to do […]
[doo-pli-key-ter, dyoo-] /ˈdu plɪˌkeɪ tər, ˈdyu-/ noun 1. a machine for making , as a mimeograph. /ˈdjuːplɪˌkeɪtə/ noun 1. an apparatus for making replicas of an original, such as a machine using a stencil wrapped on an ink-loaded drum
[doo-pli-key-tuh s, dyoo-] /ˌdu plɪˈkeɪ təs, ˌdyu-/ adjective, Meteorology. 1. (of a cloud) consisting of superposed layers that sometimes partially merge.
[doo-pli-kuh-choo r, -kuh-cher, -key-cher, dyoo-] /ˈdu plɪ kəˌtʃʊər, -kə tʃər, -ˌkeɪ tʃər, ˈdyu-/ noun 1. a folding or doubling of a part on itself, as a membrane.