the geometry of solid figures; geometry of three dimensions.
Origin of solid geometry
First recorded in 1725–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the branch of geometry concerned with the properties of three-dimensional geometric figures
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
The branch of mathematics that deals with three-dimensional figures and surfaces.
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