線せん形けい虫ちゅうMeanings1nounnematomorph; horsehair worm; gordian wormZoological term for parasitic worms of the phylum Nematomorpha, known for their long, thin, hair-like appearance.線せん形けい虫ちゅうは昆こん虫ちゅうに寄き生せいすることで知しられている。Horsehair worms are known for parasitizing insects.