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nounthe hollow spine of a feather
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nounpen made from a bird's feather
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type of: -
nounany of the larger wing or tail feathers of a bird
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nouna stiff hollow protective spine on a porcupine or hedgehogtype of:
Definition that contains quill
- family isoetaceae quillworts; coextensive with the genus Isoetes
- isoetaceae quillworts; coextensive with the genus Isoetes
- quillwort family quillworts; coextensive with the genus Isoetes