Final answer:
Cheilosis is the term used to describe dry scaling and fissuring of the lips. It is often associated with deficiency diseases and can cause cracks, sores, inflammation, and redness of the lips and tongue.
Step-by-step explanation:
Dry scaling and fissuring of the lips is called cheilosis. It is a condition characterized by cracks or sores on the outer surface of the lips. Cheilosis can also be accompanied by inflammation and redness of the tongue, as well as moist, scaly skin inflammation (seborrheic dermatitis). It is often associated with deficiency diseases, particularly a lack of certain vitamins and minerals.