gall 1 (gôl)
gall 2 (gôl)
A skin sore caused by friction and abrasion. v. galled, gall·ing, galls
To become irritated, chafed, or sore.
|gall (gôl) Pronunciation Key
An abnormal swelling of plant tissue, caused by injury or by parasitic organisms such as insects, mites, nematodes, and bacteria. Parasites stimulate the production of galls by secreting chemical irritants on or in the plant tissue. Galls stimulated by egg-laying parasites typically provide a protective environment in which the eggs can hatch and the pupae develop, and they usually do only minor damage to the host plant. Gall-stimulating fungi and microorganisms, such as the bacterium that causes crown gall, are generally considered to be plant diseases.