Word · Frequency #16981
insecticide
杀虫剂
a chemical used to kill insects
- 1.
Any of various substances used to kill insects.
- 2.
a chemical used to kill insects
用于杀死昆虫的化学药剂
用于杀死昆虫的化学药剂；杀虫剂；[化] 杀虫剂
In use
The farmer sprayed insecticide on the crops to keep pests away.
Please wear gloves when you spray this insecticide in the garden.
Some insecticides are harmful to bees, so gardeners use them only in the evening.
use insecticide to do sth
insecticide 既可作可数名词（an insecticide / insecticides），也可作不可数名词，表示这种物质。
We used insecticide to get rid of the ants.
我们用杀虫剂来消灭蚂蚁。
spray sth with insecticide
也可说 spray insecticide on sth，意思相同。
She sprayed the garden with insecticide.
她给花园喷洒了杀虫剂。
an insecticide against sth
against 后接害虫名称，表示“对……起效”。
This insecticide is effective against bedbugs.
这种杀虫剂对臭虫有效。
Common mistakes
He sprayed insecticide to the plants.He sprayed insecticide on the plants.
动词 spray 表示“喷洒”，地点用介词 on/onto，不能用 to。汉语的“向……喷洒”常被直译为 spray to，但英语中 spray 的宾语是液体，地点用 on/onto。
The store sells many different insecticide.The store sells many different insecticides.
insecticide 在表示具体种类或产品时是可数名词，受 many different 修饰必须用复数形式 insecticides；泛指物质时才作不可数名词（如 insecticide is harmful）。
Connections
Collocations
- apply insecticide
- 施用杀虫剂
- Farmers apply insecticide to protect their crops from pests.农民施用杀虫剂以保护庄稼免受虫害。
- insecticide resistance
- 杀虫剂抗药性
- Mosquitoes have developed insecticide resistance over time.蚊子随时间推移已产生杀虫剂抗药性。
- spray insecticide
- 喷洒杀虫剂
- We need to spray insecticide in the kitchen to kill the ants.我们需要在厨房喷洒杀虫剂来消灭蚂蚁。
- chemical insecticide
- 化学杀虫剂
- Chemical insecticides can harm beneficial insects as well.化学杀虫剂也可能伤害益虫。
- use insecticide
- 使用杀虫剂
- You should use insecticide sparingly to avoid pollution.你应该少量使用杀虫剂以避免污染。
Learner notes
Memory Tip
insect(昆虫) + cide(杀，如 pesticide 农药) → 杀虫剂，想象喷洒它杀死昆虫。
Context & Register
语域：neutral 常见场景：agriculture、public health、product labeling insecticide 是比较正式的用语，多用于农业、公共卫生或产品说明等书面语境；日常口语中更常说 bug spray，或用含义更广的 pesticide。选择时需注意语境。
Pronunciation & Spelling
side and decide are genuine sound matches because the final stressed syllable /saɪd/ matches insecticide's secondary-stressed ending. The other -cide words share the same spelling and ending sound, but their primary stress falls earlier, so they are not perfect rhymes. Do not let the -cide spelling fool you: pesticide, suicide, homicide, and herbicide do not fully rhyme with insecticide.
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.