enterotome

from The Century Dictionary.

• noun A portion of the embryo of vertebrates containing those structures which later develop into the digestive tract.
• noun An instrument for slitting intestines in dissection of the bowels, and for other purposes.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Med.) A kind of scissors used for opening the intestinal canal, as in post-mortem examinations.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun medicine A kind of scissors used for opening the intestinal canal, as in post-mortem examinations.