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Meaning of -tomy

-tomy

Pronunciation: [key]
  1. a combining form meaning “cutting, incision” of an organ, “excision” of an object, as specified by the initial element (); also occurring in abstract nouns corresponding to adjectives ending in(). Cf. appendectomy; lithotomy
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.