In a manner relating to reproductive compatibility as the basis for species classification.
From cenospecific plus the adverb suffix -ly. A rare technical adverb used in biology.
This adverb is so specialized that you'll only see it in dense biology papers written by experts arguing about what actually defines a species—it's the technical term for the 'they can make babies together' rule.
Complete word intelligence in one call. Free tier — 50 lookups/day.