ichthyosis (n.), ichthyotic (adj.)

synonyms: fish-scale disease, fish-skin disease, xeroderma
https://doi.org/10.1351/goldbook.10835

Congenital disorder of keratinization, characterized by dryness and scaling of the skin, often associated with other defects and with abnormalities of lipid metabolism.

Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 767 [Terms] [Paper]