callum
9.9
A thick hard part on a plant or animal that protects it
- noun
- Specialized
:
callo
- Scientists observed a thick callum forming on the injured part of the animal's shell.
Examples
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A callum can develop as a protective response to repeated stress or injury.
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The tree had a large callum on its trunk.
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The callum on the plant's stem helps it resist damage from insects.
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Many plants develop a callum to protect themselves.
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The callum on the plant's stem helps it resist damage from insects.
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Scientists observed a thick callum forming on the injured part of the animal's shell.
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Many plants develop a callum to protect themselves from environmental stress.
How Thick
Surface Forms
Etymology
The word callum is related to the common word callus, which means 'hard skin'. So a callum is a thick, hardened part on a plant or animal that acts like a natural shield and protects it.