chitin
Pronunciation
Noun
B1 Intermediate
Quick answer
A tough, protective substance that forms the outer shells of insects, crabs, and similar creatures, and the cell walls of fungi.
Test yourself
Which word fits the gap? "A crab's hard shell is made mostly of _____."
Answer: chitin
In your own words, what does "chitin" mean?
A tough, protective substance that forms the outer shells of insects, crabs, and similar creatures, and the cell walls of fungi.
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