chemical
gb/kˈɛmɪkəl/ us/kˈɛmɪkəl/
B1
Английский
~ 1900
Значения
0 значений
Существительное
B1
entity
1
A substance with a specific chemical makeup
A substance made from certain elements, often used in science or industry.
Модель употребления:
[a/an/the] chemical
Частая ошибка:
Learners sometimes confuse 'chemical' (a noun) with 'chemistry' (the science). For example, saying 'This is a dangerous chemistry' instead of 'This is a dangerous chemical.'
Синонимы
compound (More technical; refers specifically to a substance formed from two or more elements chemically bonded.)
|
substance (A broader term that can refer to any kind of matter, not just those defined by chemistry.)
Антонимы
biological material (Refers to naturally occurring organic matter rather than synthetic or processed chemicals.)
Коллокации
toxic chemical
|harmful chemical
|chemical reaction
|chemical plant
|chemical formula
Темы
science
|industry
|environment
|core_vocabulary
Примеры
- The factory was fined for releasing harmful chemicals into the river.
- Chlorine is a chemical used to disinfect water.
- Some cleaning products contain strong chemicals that can irritate your skin.
- Scientists discovered a new chemical that could help store energy more efficiently.
Примеры для изучающих
- Water is a chemical made of hydrogen and oxygen.
- This cleaner has a strong chemical in it.
- The lab tests the chemicals for safety.
- He studies different chemicals in the lab.
adjective
B1
property
2
Related to chemistry or chemicals
About chemistry or substances used in chemistry.
Модель употребления:
[chemical] [noun]
Частая ошибка:
Learners may confuse 'chemical' (adjective) with 'chemist' (a person who works with chemicals).
Синонимы
chemistry-related (Less common; explicitly links to the field of chemistry.)
Антонимы
physical (In science, relates to physical properties rather than chemical ones.)
Коллокации
chemical reaction
|chemical process
|chemical composition
|chemical warfare
Темы
science
|industry
|core_vocabulary
Примеры
- Chemical reactions release energy in different forms.
- The company follows strict guidelines for chemical safety.
- We studied the chemical structure of the new material.
- Chemical weapons are banned under international law.
Примеры для изучающих
- We learned about chemical changes in school.
- Fire is caused by a chemical reaction.
- The drink changed color because of a chemical process.
- Chemical tests showed the water is safe.
Грамматика
Словарная форма
chemical
IPA
GB/kˈɛmɪkəl/
US/kˈɛmɪkəl/
Слоги и ударение
chem - ic - al (3 слога)
Stress on 1st syllable (chem)
Формы слова
Adjective
- Base: chemical
Noun
- Base: chemical
- Plural: chemicals
Родственные слова
Forms
chemicals
noun
Related words
biochemistry
noun C1
biochemical
adjective
Advanced or less common
petrochemical
noun
Выражения
chemical reaction
1/kˈɛmɪkəl ɹiˈækʃən/
fixed phrase
technical
Process where substances change chemically
A process in which one or more substances change into new substances.
Примеры
- Combustion is a type of chemical reaction that releases heat and light.
- The rusting of iron is caused by a slow chemical reaction with oxygen.
chemical compound
1/kˈɛmɪkəl kˈɑmpaʊnd/
fixed phrase
technical
Substance of bonded elements
A substance made when two or more elements join together chemically.
Примеры
- Water is a chemical compound made of hydrogen and oxygen.
- Water is the most familiar chemical compound on Earth.
- Salt is a common chemical compound found in kitchens.
- The lab discovered a new chemical compound that can store energy efficiently.
- Each chemical compound has its own set of physical and chemical properties.
chemical warfare
1/kˈɛmɪkəl wˈɔɹfˌɛɹ/
fixed phrase
technical
Use of toxic chemicals in war
The use of poisonous chemicals as weapons during war.
Примеры
- Chemical warfare is prohibited under international law.
- Chemical warfare is banned by many international treaties.
- The army trained to protect soldiers from chemical warfare attacks.
- The army trained soldiers to protect themselves from chemical warfare.