a combining form meaning “cutting, incision” of an organ, “excision” of an object, as specified by the initial element (appendectomy; lithotomy); also occurring in abstract nouns corresponding to adjectives ending in -tomous (dichotomy).
Compare -tome, tomo-, -tomous.

Origin of -tomy

representing Greek -tomia; see -tome, -y3

Words nearby -tomy

British Dictionary definitions for -tomy


n combining form

indicating a surgical cutting of a specified part or tissue lobotomy

Word Origin for -tomy

from Greek -tomia; see -tome

Medical definitions for -tomy



Act of cutting; incision:gastrotomy.