Pen·tail n. Zool. A peculiar insectivore (Ptilocercus Lowii) of Borneo; -- so called from its very long, quill-shaped tail, which is scaly at the base and plumose at the tip.
  ◄ ►
  pen-tail
       n : brown tree shrew having a naked tail bilaterally fringed
           with long stiff hairs on the distal third; of Malaysia
           [syn: pentail, pen-tailed tree shrew]
  pentail
       n : brown tree shrew having a naked tail bilaterally fringed
           with long stiff hairs on the distal third; of Malaysia
           [syn: pen-tail, pen-tailed tree shrew]