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                           general:: 
                              noun chemical  ADJ.  chemical Scientists have produced a new chemical compound. | inorganic, organic | synthetic | molecular, simple Dalton believed that the simplest compound of two elements must have one atom of each. | active, dangerous, potent, toxic, volatile | carbon, iron, etc. VERB + COMPOUND  form, produce At the right temperature, the chemicals will form a compound. COMPOUND + VERB  contain sth | be derived from sth, derive from sth, be found in sth, occur compounds derived from rainforest plants PREP.  ~ of a compound of oxygen and hydrogen area of land and buildings  ADJ.  palace, prison, military | walled, secure Police are investigating a raid on a secure compound. PREP.  in/inside a/the ~ life inside the prison compound
                        
                        
 
                        
                            Oxford Collocations Dictionary
                        
                        
                    
                    
                        2
                           general:: 
                            compound
ADJECTIVES/NOUN + compound 
an organic compound 
(= containing carbon )
• the organic compounds of which living things are made 
an inorganic compound 
(= not containing carbon )
a chemical compound 
(= formed by a chemical process involving two or more elements )
a carbon/nitrogen/sulphur etc compound 
• Use a copper compound to protect the trees from pests. 
a toxic/dangerous compound 
(= containing poisonous or harmful substances )
• toxic compounds such as heavy metals 
verbs 
form a compound 
• Atoms combine in specific ways to form chemical compounds. 
a compound contains something 
• This compound contains two atoms of nitrogen and four atoms of hydrogen. 
                        
                        
 
                        
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