vane

/vein/
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vane

A weather vane spins on the roof of the barn.

Definition
  1. Noun:
    • The flattened weblike part of a feather: The vane is the flat, broad part of a feather, consisting of a series of barbs on either side of the central shaft (rachis), which gives the feather its shape and surface area.
    • A flat surface that rotates and pushes against air or water: A vane is a blade or flat plate designed to catch a fluid (like air or water) to cause rotation or movement, as in a windmill, turbine, or propeller.
    • A fin attached to a projectile for stabilization: A vane is a small, stabilizing fin attached to the tail of an arrow, bomb, or missile to guide its flight and keep it on course.
    • A device that shows wind direction: A vane, specifically a weather vane or wind vane, is a mechanical device, often mounted on an elevated structure, that rotates freely to indicate the direction from which the wind is blowing.
Usage Examples

  • Noun (Feather Part):

    • The ornithologist examined the vane of the feather under a microscope to study its structure.
    • Damage to the vane can prevent a bird from flying efficiently.

  • Noun (Rotating Surface):

    • The wind turbine's vanes began to spin as the breeze picked up.
    • Each vane of the ship's propeller was carefully engineered for maximum thrust.

  • Noun (Projectile Fin):

    • The arrow's plastic vanes helped it fly straight to the target.
    • Modern missiles often have adjustable vanes for precise guidance.

  • Noun (Wind Direction Device):

    • The rooster-shaped weather vane on the barn roof turned to point north.
    • We installed a simple vane on the mast to see the wind direction while sailing.
Advanced Usage
  • "To vane" (Rare/Technical Verb): To fit or provide with a vane.
    • The craftsman will vane the arrow with precision-cut feathers.
Variants and Related Words
  • Weathervane / Wind Vane (n): The specific device for showing wind direction.
    • The old church steeple is topped with a ornate copper weathervane.
  • Vaned (adj): Having vanes.
    • A four-vaned propeller.
  • Vane pump (n): A type of pump that uses vanes in a rotating rotor to move fluid.
    • The hydraulic system uses a reliable vane pump.
Synonyms
  • Blade: For the rotating surface meaning (e.g., turbine blade).
  • Fin: For the stabilizing part on a projectile.
  • Sail: In some contexts for a broad, flat surface that catches wind.
  • Fletching: Specifically for the feathers or vanes on an arrow.
Related Phrases
  • Go/Point like a vane: To change direction frequently or be easily influenced (figurative, based on a weather vane).
    • His opinions on the matter point like a vane, shifting with every new argument he hears.
vane

A weather vane spins on the roof of the barn.

Noun
  1. the flattened weblike part of a feather consisting of a series of barbs on either side of the shaft
  2. flat surface that rotates and pushes against air or water
  3. a fin attached to the tail of an arrow, bomb or missile in order to stabilize or guide it
  4. mechanical device attached to an elevated structure; rotates freely to show the direction of the wind

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