co·los·to·my 
(kə-lŏstə-mē)
(kə-lŏstə-mē)n. pl. co·los·to·mies
1. Surgical construction of an artificial excretory opening from the colon.
2. The opening created by such a surgical procedure.
- power chord
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- powerhouse
- power kite
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- power of attorney
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- power plant
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- power shovel
- power station
- power steering