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单词 Aleppo gall
释义

Definition of Aleppo gall in 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.

    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.

    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.
 
 
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更新时间:2024/9/21 3:34:58