%ما هو (من)٪ 1 - تعريف

INSECT-INDUCED GROWTH ON PLANT. OFTEN VERY DISTINCTIVE AND EVEN SPECIES-SPECIFIC STRUCTURES DEVELOPED WHEN INSECTS, FUNGI OR BACTERIA STIMULATE ABNORMAL GROWTH OF A PLANT

Galls; Gall (botany); Plant galls; Gallnut; Nutgall; Plant gall; Cecidium; Gallnuts; Nutgalls; Nut gall; Cecidia

Nutgall

·noun A more or less round gall resembling a nut, ·esp. one of those produced on the oak and used in the arts. ·see Gall, Gallnut.

nutgall

Gall, gall-nut.

nutgall

¦ noun

1. another term for Aleppo gall.

2. a gall which forms inside hazel buds.

ويكيبيديا

Gall

Galls (from the Latin galla, 'oak-apple') or cecidia (from the Greek kēkidion, anything gushing out) are a kind of swelling growth on the external tissues of plants, fungi, or animals. Plant galls are abnormal outgrowths of plant tissues, similar to benign tumors or warts in animals. They can be caused by various parasites, from viruses, fungi and bacteria, to other plants, insects and mites. Plant galls are often highly organized structures so that the cause of the gall can often be determined without the actual agent being identified. This applies particularly to some insect and mite plant galls. The study of plant galls is known as cecidology.

In human pathology, a gall is a raised sore on the skin, usually caused by chafing or rubbing.

https://en.wikipedia.org/wiki/Gall