蠹简 dùjiǎn worm-eaten books Origin Definitions Defs Strokes Stroke Words Sentences Sents 蠹 dù bookworm (bound form) an insect that eats into books, wood, or clothing; also refers to a bookworm as in 蠹虫 dùchóng简 簡 jiǎn bamboo slips (bound form) narrow strips of bamboo or wood used for writing in ancient times