A hard nutlike gall that forms on some varieties of oak in response to the developing larva of a gall wasp. It is used as a source of gallic acid and tannin.
阿勒颇栎树虫瘿（对瘿蜂幼虫发育的反应）
The wasp is Cynips quercusfolii, family Cynipidae
Also called nutgall
Example sentencesExamples
In that year, more than 550,000 pounds of Aleppo galls were imported from Turkey.
The best Aleppo galls, collected in Asiatic Turkey, principally in the province of Aleppo, are collected before the insects escape.
Oak galls, primarily Aleppo galls or Mecca Galls imported from Turkey contain 50 to 70% gallotannic acid and were a major source of gallic and tannic acid used in tanning and dyeing.
The main constituents of Aleppo galls are 50 to 70 per cent of gallotannic acid, 2 to 4 per cent of gallic acid, mucilage, sugar, resin and an insoluble matter called lignin.
The Aleppo gall has been used since the time of the Greeks as a nonfading ink.
Definition of Aleppo gall in US English:
Aleppo gall
noun
A hard nutlike gall that forms on some varieties of oak in response to the developing larva of a gall wasp. It is used as a source of gallic acid and tannin.
阿勒颇栎树虫瘿（对瘿蜂幼虫发育的反应）
The wasp is Cynips quercusfolii, family Cynipidae
Also called nutgall
Example sentencesExamples
The main constituents of Aleppo galls are 50 to 70 per cent of gallotannic acid, 2 to 4 per cent of gallic acid, mucilage, sugar, resin and an insoluble matter called lignin.
The best Aleppo galls, collected in Asiatic Turkey, principally in the province of Aleppo, are collected before the insects escape.
Oak galls, primarily Aleppo galls or Mecca Galls imported from Turkey contain 50 to 70% gallotannic acid and were a major source of gallic and tannic acid used in tanning and dyeing.
The Aleppo gall has been used since the time of the Greeks as a nonfading ink.
In that year, more than 550,000 pounds of Aleppo galls were imported from Turkey.