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Ostiak
ostiary
ostinato
ostiole
ostium
ostler
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ostomate
ostomy
-ostosis
ostracize
ostracod
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ostomy

os·to·my [ óstəmee ] (plural os·to·mies)


noun 
Definition:
 
surgical procedure: a surgical procedure in which an artificial opening for excreting waste matter is created, e.g. a colostomy or ileostomy

[Mid-20th century. < terms like colostomy, ileostomy]
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