Last Updated
：2025/11/25
egg tooth
（ plural ）
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(zoology) A small, sharp, cranial protuberance used by offspring to break or tear through the egg's surface during hatching.
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egg tooth
The hatchling used its egg tooth to pierce the shell and emerge into the sunlight.
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The hatchling used its egg tooth to pierce the shell and emerge into the sunlight.
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