Tomato gall

(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.
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