compound
Pronunciation
Noun
B1 Intermediate
Quick answer
A substance formed when two or more chemical elements are chemically joined together, or an enclosed area containing a group of buildings.
Usage notes
In chemistry, a compound is made of different elements chemically joined, while a mixture simply combines substances without forming a bond.
Test yourself
Which word fits the gap? "Water is a _____ made of hydrogen and oxygen."
Answer: compound
In your own words, what does "compound" mean?
A substance formed when two or more chemical elements are chemically joined together, or an enclosed area containing a group of buildings.
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