nutgall


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nutgall:

see gallgall,
abnormal growth, or hypertrophy, of plant tissue produced by chemical or mechanical (e.g., the rubbing together of two branches) irritants or hormones. Chemical irritants are released by parasitic fungi, bacteria, nematode worms, gall insects, and mites.
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nutgall

[′nət‚gȯl]
(plant pathology)
A nutlike gall.
References in periodicals archive ?
He reports that prominent Roman physician Galen attempted to improve the appearance of patient's eyes by using a heated metal rod to cauterise the surface of the eyeball, after which he applied powdered nutgalls or pomegranate bark mixed with a copper salt to the area.
A man of his position, who has sunk until today he must pick up nutgalls for other people, and buy skins in the villages for the Jews.