1) Orthopaedic instrument 
An osteotome is an instrument used for cutting or preparing bone. Osteotomes are similar to a chisel but bevelled on both sides. They are used today in Orthopedic Surgery and dental implantation. The chain osteotome, originally referred to simply as the osteotome, was invented by the German physician Bernhard Heine in 1830. This device is essentia...
• (n.) Strong nippers or a chisel for dividing bone.
(os´te-o-tōm″) a chisel-like knife for cutting bone.
Os'te·o·tome noun [ Osteo- + Greek ....] (Surg.) Strong nippers or a chisel for dividing bone. 
Type: Term Pronunciation: os′tē-ō-tōm Definitions: 1. An instrument for use in cutting bone.
A knife, used for cutting bone, in which both sides of the cutting edge are beveled
a double-beveled chisellike instrument for cutting or dividing bone.