The Collaborative International Dictionary
Rachitome
Rachitome \Ra"chi*tome\ (r[=a]"k[i^]*t[=o]m), n. [F., fr. Gr. "ra`chis, -ios, the spine + te`mnein to cut.] A dissecting instrument for opening the spinal canal.
Wiktionary
rachitome
n. A dissecting instrument for opening the spinal canal.