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(Architecture) a cellar below another cellar
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈsʌbˌsɛl ər)

a cellar below the main cellar.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
The 31,500 s/f condo includes 12,500 s/f on the ground, 9,000 s/f on the lower level and 10,000 s/f in the subcellar.
First of all, the level of Cd in plants might be affected by several physiological factors of plants, including Cd uptake from the solution, xylem translocation from root to the aerial, sequestration of Cd (in subcellar compartments or as organic complexes) [6].
The property has been rezoned to a C1-9 district, and a special permit will enable the buyer to develop a 100-space public parking garage on the cellar and subcellar levels.
Center Sheet Metal, the project's mechanical contractor, had to place two Dectron heat pumps into the subcellar of the building.
At some moment, I discovered myself in a subcellar I didn't recognize, and seated nearby was my mother, who was speaking with me, though I couldn't quite see her face in the wispy shadows.
Transformers under the sidewalk in front of the building and two electrical panels in a subcellar were causing the equipment to misfunction.