See Also: wadd(medicine)
niggle(1)(dictionary)
niggle(2)(dictionary)
niggle 1, verb(dictionary)
niggle 2, noun(dictionary)

niggle 2, noun (oh) and wadd (medicine)


niggle 2, noun (oh)



2 n [C]
a slight feeling
::a niggle of doubt
a slight criticism or complaint
a slight physical pain
::a niggle in his knee

wadd (medicine)


wadd
<chemical> 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.

Plumbago, or black lead.

Source: Websters Dictionary