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Use "keratogenous" in a sentence
"Extensive slit-like cuts in this region, when deep enough to lacerate the keratogenous membrane, are sometimes followed by the growth of a fissure in the horn, and what might almost be termed a permanent sand-crack results."
"Portions of this loose horn removed reveal beneath it a caseous foetid matter, easily removed by scraping (the perverted secretion of the keratogenous membrane)."
"The superficial layer of the keratogenous membrane in which we have judged the disease to exist is, after all, but a delicate structure."