A.D CLA.K, A. B.: A.contribution to the study of keratomalacia among rats.    From Wordnik.com.  [The Vitamine Manual] Reference

The absence of the "A" type however may also manifest itself in another way, viz., by the development of an eye disease which McCollum first designated as xerophthalmia or dry eye and which the British authorities prefer to designate as keratomalacia.    From Wordnik.com.  [The Vitamine Manual] Reference