gall

باللغة العربية: عَفْصَة

1. A blister or tumor-like growth found on the surface of plants, caused by various pathogens, especially the burrowing of insect larvae into the living tissues, such as that of the common oak gall wasp (Cynips quercusfolii).
2. A bump-like imperfection resembling a gall.

الجمع galls