| 单词 | insecticide |
| 释义 | insecticide (once / 12918 pages) n Insecticide is a type of chemical used to kill insects, like those that have infested a house or a farmer's crops. Words that end in -cide usually have to do with killing, such as genocide, suicide, and patricide. Another is insecticide, which is a word for a substance that kills insects and bugs. Insecticide is a type of chemical, and it often consists of a powder or gas. If your house is full of bedbugs or cockroaches, you need insecticide. Farmers sometimes use insecticides to keep insects from destroying crops. If you're a bug, insecticide is bad news. WORD FAMILYinsecticide: insecticides USAGE EXAMPLESBut mosquitoes will eventually develop resistance to any conventional insecticide. Seattle Times(Dec 23, 2016) It says workers entered a field recently sprayed with a restricted insecticide. Seattle Times(Dec 15, 2016) According to WHO, an estimated 43% of the population in sub-Saharan Africa was not protected by treated nets or by insecticides sprayed indoors in 2015. Los Angeles Times(Dec 12, 2016) n a chemical used to kill insects Syn|Hypo|Hyper insect powder pyrethrum made of dried flower heads of pyrethrum plants DDT, dichlorodiphenyltrichloroethanean insecticide that is also toxic to animals and humans; banned in the United States since 1972 larvacidean insecticide that kills the larvae of insects lead arsenatea poisonous white solid (Pb3[AsO4]2) used as an insecticide lindanea white crystalline powder used as an agricultural insecticide Malathiona yellow insecticide used as a dust or spray to control garden pests and house flies and mites organophosphatean insecticide that interferes with an insect's nervous system parathiona colorless and odorless toxic oil used as an insecticide Paris greena toxic double salt of copper arsenate and copper acetate rotenonea white crystalline insecticide that has low toxicity for mammals; is used in home gardens; extracted from the roots of derris and cube chlorpyrifosa common organophosphate insecticide Kwella preparation of lindane (trade name Kwell) that is used to kill lice and itch mites; available in cream or shampoo pesticide a chemical used to kill pests (as rodents or insects) |
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