Word · Frequency #21345
deleterious
有害的；造成伤害的
harmful to living things
- 1.
Having lower fitness.
具有较低的适合度。
具有较低的适合度。；有害的；造成伤害的；[医] 有害的
In use
The chemical spill had a deleterious effect on the local fish population.
Smoking is deleterious to your health, so the doctor advised him to quit.
The new policy proved deleterious for small businesses in the area.
be deleterious to sth
deleterious 是正式用语，常与介词 to 搭配，表示“对……有害”。
Smoking is deleterious to your health.
吸烟对健康有害。
have a deleterious effect on sth
deleterious effect 是常见搭配，表示“有害影响”，后接 on 引出受影响的对象。
Stress can have a deleterious effect on the immune system.
压力会对免疫系统产生有害影响。
Common mistakes
The deleterious of smoking are well known.The deleterious effects of smoking are well known.
deleterious 是形容词，不能直接作名词。应在后面接一个名词（如 effects）来构成名词短语。
Smoking is deleterious for your health.Smoking is deleterious to your health.
deleterious 表示“对……有害”时，固定搭配介词是 to，而不是 for。
This chemical can deleterious your health.This chemical can be deleterious to your health.
deleterious 是形容词，不能作动词。要表达“对……有害”需用 be deleterious to 结构。
Connections
Collocations
- deleterious effects
- 有害影响；不良影响
- Smoking has deleterious effects on your health.吸烟对健康有不良影响。
- deleterious consequences
- 有害后果
- The management ignored the deleterious consequences of cutting safety training.管理层忽视了削减安全培训带来的有害后果。
- deleterious to health
- 对健康有害
- These chemicals are deleterious to human health.这些化学物质对人体健康有害。
- deleterious impact
- 有害影响；负面冲击
- Stress can have a deleterious impact on sleep quality.压力会对睡眠质量产生有害影响。
- deleterious mutations
- 有害突变
- Natural selection removes deleterious mutations from a population.自然选择会从种群中清除有害突变。
Learner notes
Memory Tip
记住 deleTERIOUS 里有 delete（删除），有害的东西就该被删掉。
Context & Register
语域：formal 常见场景：学术写作、医学或科学文献、正式报告 deleterious 是正式用词，通常用于学术或专业语境，表示“有害的；造成伤害的”；日常口语中更常说 harmful 或 damaging。
Pronunciation & Spelling
True rhymes: mysterious, imperious, and serious share the stressed /ɪə/ + /riəs/ ending with deleterious. Lookalikes to watch: various has the -arious spelling but is pronounced /ˈvɛəriəs/, not /ˈɪəriəs/; delicious begins with deli- but is pronounced /dɪˈlɪʃəs/.
Dictionary facts from ECDICT, WIKTIONARY.