noun
nematode; roundworm
Scientific term for nematodes, a phylum of unsegmented worms. Used in biology, agriculture, and medicine.
線虫は土壌中に多く生息している。
Nematodes inhabit soil in large numbers.
この線虫は植物の根に寄生する。
This nematode parasitizes plant roots.
Compound of 線 (sen, 'line, thread') and 虫 (chū, 'worm, insect'), referring to the thread-like shape of nematodes.