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compound, drug, potion, synthetic  
English Collins Dictionary - English synonyms & Thesaurus  


  ( chemicals    plural  )
1       adj   Chemical means involving or resulting from a reaction between two or more substances, or relating to the substances that something consists of.  
ADJ n  
...chemical reactions that cause ozone destruction., ...the chemical composition of the ocean., ...chemical weapons.     
  chemically      adv   ADV with v, ADV adj  
...chemically treated foods..., The medicine chemically affects your physiology.     
2       n-count   Chemicals are substances that are used in a chemical process or made by a chemical process.  
usu pl  
The whole food chain is affected by the over-use of chemicals in agriculture., ...the chemical industry.     

chemical engineer        ( chemical engineers    plural  ) A chemical engineer is a person who designs and constructs the machines needed for industrial chemical processes.      n-count  
chemical engineering     
Chemical engineering is the designing and constructing of machines that are needed for industrial chemical processes.      n-uncount  

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