nem·a·to·cide noun alsonem·a·ti·cide\ˈneməd.əˌsīd, nə̇ˈmad.-\; ornem·a·cide\ˈneməˌs-\ (-s) Etymology:nematocide from nemat- + -cide; nematicide from nemat- + -i- + -cide; nemacide from nem- + -cide : a substance or preparation used to destroy nematodes, especially those that attack crop plants — compare anthelmintic