hollow bone n.
See pneumatic bone.
Wild turkeys are approached by the aid of a call made from a hollow bone.
The poison, which is made either from the leaf of a tree or from decomposed meat, is placed in the arrow-head of hollow bone.
Arrow-point of hollow bone, from S. America, the hollow of the bone being filled with poison.
And so Antler learned to protect the cord by running it through a hollow bone.
Some see in the skull only a punning signature of the painter's name (hohl bein, hollow bone, holbein).
One specimen has a row of stamped circles, made by a reed or hollow bone.