worm; helminth
Technical biological term for parasitic worms; in everyday language, 虫 (むし) is more common.
Hygiene management is important for preventing helminth infections.
This parasite is classified as a helminth.
From Chinese 蠕蟲 (rúchóng), meaning 'wriggling worm'. The kanji 蠕 means 'wriggling' or 'crawling', and 虫 means 'insect' or 'worm'.