combining form
or zygo-
Etymology: New Latin, from Greek, from zygon — more at yoke
1.
a. : yoke : connecting in the manner of a yoke : joining
zygo sphene
zyg antrum
zygo neure
b. : zygomatic
zygion
2. : yoked state or part : pair
zygo dactyl
zyg odont
3. : union : fusion : zygosis
zygo spore
zygo genesis