- an object shaped like two cones with their bases together.
Origin of bicone
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for biconical
Fig. 58 shows a biconical whorl with curious and inexplicable characters.
Fig. 66 shows a biconical whorl, and its top is decorated to represent three Swastikas and three burning altars.
The specimen shown in fig. 64 is biconical, though, as usual, the upper cone is the smallest.