ENT(redirected from Entmoot)
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electrical nonmetallic tubing (ENT)
A round, corrugated plastic tube that is concealed in concrete, or it may be concealed in a ceiling construction having a fire rating of at least 15 minutes, provided the ceiling is not used as a plenum for return air.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.