GRANULOMA

granuloma

(noun) a tumor composed of granulation tissue resulting from injury or inflammation or infection

Source: WordNet® 3.1

Etymology

Noun

granuloma (plural granulomas or granulomata)

(pathology) an inflammatory nodule found in many diseases, consisting of histiocytes (macrophages) attempting to wall off substances they perceive as foreign but are unable to eliminate, such as certain infectious organisms as well as other materials such as suture fragments

(medicine, less specific) any small nodule

Source: Wiktionary