noun Canadian.

an aboveground, insulated network of pipes and cables, used to convey water and electricity in communities situated in areas of permafrost.

Origin of utilidor

utili(ty) + -dor, as in thermidor
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British Dictionary definitions for utilidor



Canadian an enclosed and insulated conduit for sewage and other utilities placed above the level of permafrost
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