What does being "duckbilled" mean? [closed]

expressions

You've overthinking it. It literally means, "has a bill like a duck".

The "bill" of a duck is the prominent hard beak:

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So any other animal with a similar snout might be called "duckbilled".

For example, this is a duckbilled platypus:

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There are groups of "duckbilled" dinosaurs as a similarly-shaped snout:

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