Xanthoma

Part of speech: noun

Pronunciation: /zænˈθoʊmə/

Definitions

1. A benign neoplasm featuring yellowish fatty deposits within the skin or tendons that emerge due to lipid buildup from metabolic disturbances
2. A condition characterized by the appearance of yellow lesions on the skin or mucous membranes, primarily resulting from abnormal lipid metabolism
3. A skin disorder marked by the formation of yellowish growths resulting from excessive fat accumulation due to metabolic issues

Etymology: Xanthoma is a medical coinage, built in modern scientific Latin from two Greek parts. The first, "xanth-", comes from Ancient Greek "xanthos", meaning yellow or tawny, and the second, "-oma", is a suffix that forms nouns for abnormal growths and swellings, from "-ōma" in Greek. Put together, the name describes a lesion that is yellow in colour. The Greek suffix itself has a long pedigree. It belongs to a family of Greek nouns ending in "-ōma", which were used for the results of an action, and physicians later adopted the ending freely to name tumours, swellings and skin conditions. Doctors did not coin xanthoma in antiquity, though: the word is a modern formation, assembled from classical materials in the way that many clinical terms were. The result is a name that is transparent to anyone who knows a little Greek. A xanthoma is a patch of yellowish fatty deposit that appears in the skin, and its name says exactly what it looks like.