combining form
or spheno-
Etymology: New Latin, from Greek sphēn-, sphēno-, from sphēn — more at spoon
1. : wedge : wedge-shaped
spheno gram
Sphen odon
2.
a. : of or relating to the sphenoid
spheno tribe
b. : sphenoidal and
spheno mastoid
sphen ethmoidal