|(Zool.)||a large gall consisting of a mass of irregular swellings on the stems and leaves of grapevines. They are yellowish green, somewhat tinged with red, and produced by the larva of a small two-winged fly (Lasioptera vitis).|
See also: Tomato
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.