Wiktionary
interfertility
n. Quality of being interfertile.
Usage examples of "interfertility".
Burroughs wrote decorously of the interfertility of a Virginian miraculously transported to Mars and Dejah Thoris, the princess of a kingdom with the improbable name of Helium.
Prior remembered that there was a story about interfertility of man and sheep, a crossbreed between the two.