-tome
(təʊm)
terminal element: (a) f. Gr. -τόµον, neut. of -τόµος that cuts (see -tomy), used in names of instruments for cutting, esp. ones used in surgical operations denoted by the corresponding word in -tomy, as in cystotome s.v. cysto-, hysterotome, microtome; (b) f. Gr. τοµή a cutting, used in words denoting a distinct section or segment of a body or part, as in myotome 1, gonotome s.v. gono-.