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Webster 1913 Edition


Wadd

{

Wad

,

Wadd

, }
Noun.
(Min.)
(a)
An earthy oxide of manganese, or mixture of different oxides and water, with some oxide of iron, and often silica, alumina, lime, or baryta; black ocher. There are several varieties.
(b)
Plumbago, or black lead.

Webster 1828 Edition


Wadd

WADD

,
Noun.
In mineralogy, a black wadd is a species of ore of manganese, of which there are four kinds; fibrous, ochery, pulverulent ochery, and dendritic. In some places, plumbago or black lead is called wad or wadd.

Definition 2021


wadd

wadd

English

Noun

wadd (plural wadds)

  1. (mineralogy) Alternative form of wad

Welsh

Noun

wadd

  1. Soft mutation of gwadd.