aquafortis

early scientific name for dilute nitric acid (HNO3), a powerful solvent and corrosive .
Found on http://www2.shu.ac.uk/sfca/glossary.cfm

Aquafortis

Nitric acid, used in the dyeing process to make the dye-bath acidic and improve the take up of dye by the wool fibres.
Found on http://www.digitalstroud.co.uk/glossary.php?glossgroup=W-Z
No exact match found