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BNC: 2548 COCA: 2617

chemical

Word family
Related topics: Chemistry
chem·i·cal1 /ˈkemɪkəl/ ●●● S3 W3 AWL noun [countableC]  
HCa substance used in chemistry or produced by a chemical process 化学品
toxic/hazardous/dangerous chemicals 有毒/有害/危险化学品
 the organic chemicals industry
有机化学工业
 synthetic chemicals
合成化学品
nCOLLOCATIONS
adjectives
dangerous/harmful
Many cleaning products contain chemicals that can be harmful.
hazardous (=very dangerous)
There are major problems over the disposal of hazardous chemicals.
toxic/poisonous (=containing poison)
The chemicals that were released were highly toxic.
synthetic chemicals (=made by mixing artificial substances)
A synthetic chemical is, in theory, identical to that found in nature.
organic chemicals (=containing natural substances including carbon)
Oil and coal are known as organic chemicals.
industrial/agricultural chemicals (=used in industry/in farming)
Some deaths from cancer are related to industrial chemicals.
verbs
use chemicals
Farmers use chemicals to kill insects that would destroy their crops.
produce chemicals
the dangerous chemicals produced by burning oil
be exposed to chemicals
Some of the troops were exposed to chemicals.
chemical + NOUN
the chemical industry
The chemical industry is one of the most important industrial sectors.
a chemical plant (=factory producing chemicals)
There has been an explosion at a chemical plant in Germany.
a chemical fertilizer (=chemicals to help plants grow)
Many crops are grown with chemical fertilizers.
chemical waste
the risks from pollution and chemical waste
chemical weapons (=poisonous chemicals used as weapons)
a global treaty banning chemical weapons
chemical warfare (=the use of chemical weapons in wars)
There is now also the threat of chemical warfare.
Examples from the Corpus
Related topics: Chemistry
chemical2 ●●● W3 AWL adjectiveadj [only before noun]  
HCrelating to substances, the study of substances, or processes involving changes in substances 化学的;化学上的;用化学方法制造的
 the chemical composition of bleach
漂白剂的化学成分
 a chemical analysis of the soil
对土壤的化学分析
chemically /-kli/ adverbadv
 Chemically, the substances are similar.
从化学性质上,这些物质是相似的。
Examples from the Corpus
Origin chemical2
(1500-1600) Modern Latin chimicus alchemist, from Medieval Latin alchimicus, from alchymia; → ALCHEMY

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