aftershaft definition

  • noun:
    • An accessory plume as a result of the posterior of the contour feathers of numerous birds.
    • The hypoptilum.
    • In ornithology: A supplementary feather growing from a feather; the hypoptilum.
    • The shaft of these a supplementary feather. Also known as hyporachis.
    • a supplementary feather (usually tiny) in the underside of the foot of the shaft of some feathers in a few birds

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