See Also: tractory(medicine)
tractory(dictionary)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
verruca(medicine)
verruca(dictionary)
verruca(dictionary)
Verruca(health)
verruca vulgaris(medicine)
seborrheic verruca(medicine)
verruca simplex(medicine)

verruca vulgaris (medicine) and tractory (iou)


verruca vulgaris (medicine)


verruca vulgaris


A keratotic papilloma of the epidermis which occurs most frequently in young persons as a result of localised infection by human papilloma virus, usually types 2 and 4; the lesions are of variable duration, eventually undergoing spontaneous regression, and are both exophytic and endophytic, with hyperkeratosis, parakeratosis, hypergranulosis, koilocytosis, and papillomatosis.

Synonym: common wart, infectious warts, verruca simplex, viral wart.


tractory (iou)



tractory noun.E17-L19.
[from Latin tractorius of or for drawing, formed as TRACTOR: see -ORY2.]
A part of a plough. rare. Only in E17.
Ecclesiastical History. A letter from a synod or council of bishops. rare. Only in E18.
Geometry. = TRACTRIX. Only in 19.