蠹書蟲 dùshūchóng silverfish Origin Definitions Defs Strokes Stroke Words Sentences Sents dùshūchóng silverfish 蠹 dù bookworm (bound form) an insect that eats into books, wood, or clothing; also refers to a bookworm as in 蠹虫 dùchóng书虫 書蟲 shūchóng bookworm (insect) A tiny insect that eats and damages the paper or bindings of books.dùshūchóng bookworm 蠹 dù bookworm (bound form) an insect that eats into books, wood, or clothing; also refers to a bookworm as in 蠹虫 dùchóng书虫 書蟲 shūchóng noun bookworm (person) A person who is obsessed with reading; can also mean a person who reads a lot but lacks practical experience or doesn't apply the knowledge well.