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Douglas Harper's Etymology Dictionary

from Latin granulum (see granular) + -oma, on model of glaucoma, etc.


n. (context medicine English) a tumor consisting of a mass of granular tissue that sometimes results from infection or injury

  1. n. a tumor composed of granulation tissue resulting from injury or inflammation or infection

  2. [also: granulomata (pl)]


Granuloma (plural granulomas or granulomata) is an inflammation found in many diseases. It is a collection of immune cells known as histiocytes. Granulomas form when the immune system attempts to wall off substances it perceives as foreign but is unable to eliminate. Such substances include infectious organisms including bacteria and fungi, as well as other materials such as keratin and suture fragments. The adjective granulomatous means characterized by granulomas.

Usage examples of "granuloma".

You're atrophied, decalcified, dehydrated, full of toxins, and have granulomas from sea urchin spines wandering around your body.

The idea that tuberculous granuloma of the fallopian tube had been reported from around the country made her more curious than ever.