primary quill
Definition
Noun: * Primary Quill: One of the large, strong flight feathers (remiges) located on the outer, distal part of a bird's wing. These are the feathers attached to the "hand" bones (the manus) and are crucial for generating thrust and lift during flight.
Usage
- The term "primary quill" is a specific ornithological term. In everyday language, people are more likely to refer to these simply as "primary feathers" or "flight feathers."
- It is used to describe the anatomy and function of a bird's wing.
Examples
- The eagle spread its wings, revealing the impressive length and strength of its primary quills.
- Ornithologists study the wear patterns on primary quills to learn about a bird's migration habits.
- A damaged primary quill can severely hinder a bird's ability to fly.
Advanced Usage
- The term is often used in scientific, zoological, or bird-watching contexts. It precisely identifies the location (outer wing) and function (primary flight) of the feather.
- The number of primary quills varies by species but is often between 9 and 12.
Variants and Related Words
- Primary Feather: A more common synonym for "primary quill."
- Flight Feather (Remex): The general category of large wing and tail feathers used for flight, which includes both primary and secondary feathers.
- Secondary Quill/Feather: The flight feathers attached to the forearm (ulna) of the bird's wing, which are important for lift.
- Quill: The hollow, central shaft of a feather. In a broader, less precise sense, it can sometimes refer to a large feather, especially from a wing or tail.
Synonyms
- Primary feather
- Flight feather (in the specific context of the outer wing)
- Remex (plural: remiges)
Notes on Meaning
- The "primary" in "primary quill" refers to its position as the foremost flight feather, originating from the bird's hand.
- The "quill" refers specifically to the strong, central shaft (the calamus and rachis) of the feather, emphasizing its structural role.
Noun
-
one of the main flight feathers projecting along the outer edge of a bird's wing
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