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tomo-

American  
  1. a combining form meaning “a cut, section,” used in the formation of compound words.

    tomography.


tomo British  
/ ˈtɒmɒ /

noun

  1. a shaft formed by the action of water on limestone or volcanic rock

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What does tomo- mean? Tomo- is a combining form used like a prefix meaning “a cut, section.” It is used in a few medical terms. Tomo- comes from the Greek tómos, meaning “cut, slice.” This root, which can also mean “piece, roll of paper, or book,” is also the source of the word tome. Crack open the history of tome at our entry for the word. Also related to tómos is atom. What’s the big idea behind atoms and cutting? Find out in our Origin section for this term. Related to tomo- are the combining forms -ectomy, -tome, -tomy, and -tomous. Slice into their specific meanings at our Words That Use articles for the forms.

Etymology

Origin of tomo-

Combining form representing Greek tómos a cut, section; -tome