[ bahy-sfee-noid ]
/ baɪˈsfi nɔɪd /
a tetrahedral form, each edge of which is bisected by the perpendicular bisecting the edge that does not intersect it.
Origin of bisphenoid
Also called disphenoid.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019