Veining is a word used to describe the pattern of lines or streaks, usually found in natural materials such as marble, granite, or wood. Synonyms for veining include marbling, graining, striation, banding, ribboning, and streaking. These words represent the various ways in which the lines or streaks can appear in different materials. Marbling, for example, usually refers to the swirling or whorled patterns found in certain types of stone or paper. Graining is often used to describe the visible wood grain in furniture or flooring. Striation and banding can refer to any pattern of lines, while ribboning and streaking suggest more irregular or unpredictable patterns.