sep·tec·to·my 
(sĕp-tĕktə-mē)
(sĕp-tĕktə-mē)n. pl. sep·tec·to·mies
Surgical excision of a septum or part of a septum, especially the nasal or atrial septum.
- discombobulation
- discomfit
- discomfiture
- discomfort
- discomfortable
- discomfortingly
- discommend
- discommendable
- discommode
- discompose
- discomposedly
- discomposure
- disconcert
- disconcertingly
- disconformity
- disconnect
- disconnected
- disconnectedly
- disconnectedness
- disconnection
- disconsolate
- disconsolately
- disconsolation
- discontent
- discontented