Lymphangioma

Part of speech: noun

Definitions

1. A benign tumor formed from lymphatic vessels, typically appearing as a soft, fluid-filled growth in the skin or underlying tissues
2. A non-cancerous lesion arising from the lymphatic system, often characterized by swelling or the presence of clear fluid
3. An abnormal proliferation of lymphatic vessels resulting in a lump, usually treatable and frequently found in children or infants

Etymology: Lymphangioma is a compound built from two parts that each carry their own history. The first, "lymph-", comes from the Latin "lympha", meaning water or clear fluid, a sense that fits the clear fluid these growths often contain. The second, "angioma", comes from the Greek "angeion", meaning vessel, joined to the suffix "-oma", used in medicine for tumours and swellings. Put together, the word names a benign swelling made of lymphatic vessels. Because "angioma" already described benign growths of blood vessels, the new term was formed by swapping in the lymphatic element, a pattern that let medical writers name related conditions in a consistent way. The word is therefore a technical coinage from classical roots rather than a term that ancient physicians used.