An excrescence on the oak, Quercus infectoria (family Fagaceae) and other species of Quercus, caused by the deposit of the ova of a fly, Cynips gallae tinctorae; an astringent and styptic, by virtue of the tannin it contains. SYN: gall (3), galla, oak apple.

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nut·gall 'nət-.gȯl n a gall that resembles a nut esp a gall produced on an oak (esp. Quercus infectoria) and used as a source of tannic acid

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nut·gall (nutґgawl) [L. galla] an excrescence growing on oak trees (genus Quercus), especially Q. alba (the white oak), produced by insect eggs and larvae embedded in the plant tissues; it is a source of gallic and tannic acids, which are used in various pharmaceuticals for their astringent properties. Called also gall, Aleppo gall, and gallnut.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Nutgall — Nut gall , n. 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}. [1913 Webster] …   The Collaborative International Dictionary of English

  • nutgall — [nut′gôl΄] n. a small, nut shaped gall on the oak and other trees …   English World dictionary

  • nutgall — noun An enlarged growth on a tree formed in response to damage or parasite. Sometimes called just a gall. In two pints of water boil one ounce of tan, and a like portion of nutgall till reduced to a pint …   Wiktionary

  • nutgall — kininis žagrenis statusas T sritis vardynas apibrėžtis Anakardinių šeimos dažinis, dekoratyvinis, maistinis, vaisinis, vaistinis augalas (Rhus chinensis), paplitęs rytų ir pietryčių Azijoje. atitikmenys: lot. Rhus chinensis; Rhus javanica; Rhus… …   Lithuanian dictionary (lietuvių žodynas)

  • Nutgall oak — Oak Oak ([=o]k), n. [OE. oke, ok, ak, AS. [=a]c; akin to D. eik, G. eiche, OHG. eih, Icel. eik, Sw. ek, Dan. eeg.] [1913 Webster] 1. (Bot.) Any tree or shrub of the genus {Quercus}. The oaks have alternate leaves, often variously lobed, and… …   The Collaborative International Dictionary of English

  • nutgall — noun Date: 15th century a gall that resembles a nut; especially such a gall produced on oaks …   New Collegiate Dictionary

  • nutgall — /nut gawl /, n. a nutlike gall or excrescence, esp. one formed on an oak. [1585 95; NUT + GALL3] * * * …   Universalium

  • nutgall — n. small nut shaped protrusion on trees produced by the gall wasp …   English contemporary dictionary

  • nutgall — noun 1》 another term for Aleppo gall. 2》 a gall which forms inside hazel buds …   English new terms dictionary

  • nutgall — n. Gall, gall nut …   New dictionary of synonyms

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