D defs.my
Entry 1 sense Webster, 1913

Aplustre

· A·plus·tre · IPA /əˈplʌstriː/
01 n. An ornamental appendage of wood at the ship's stern, usually spreading like a fan and curved like a bird's feather.
  1. 1.
    An ornamental appendage of wood at the ship's stern, usually spreading like a fan and curved like a bird's feather.(Rom. Antiq.)