[li-thog-ruh-fee] 
| 1. | the art or process of producing a picture, writing, or the like, on a flat, specially prepared stone, with some greasy or oily substance, and of taking ink impressions from this as in ordinary printing. |
| 2. | a similar process in which a substance other than stone, as aluminum or zinc, is used. Compare offset (def. 6). |
| li·thog·ra·phy (lĭ-thŏg'rə-fē) n. A printing process in which the image to be printed is rendered on a flat surface, as on sheet zinc or aluminum, and treated to retain ink while the nonimage areas are treated to repel ink. |
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