nigrosine Chem.
(ˈnɪgrəsɪn)
Also -in.
[f. L. nigr- black + -ose + -ine5.]
A blue-grey or blue-black colouring matter derived from aniline hydro-chlorate.
| 1892 in Syd. Soc. Lex. 1897 Westm. Gaz. 12 Aug. 2/3 One sample, made of nigrosine,..contained quantities of fungi. 1899 Allbutt's Syst. Med. VIII. 882 They stain well..with hæmatoxylin, congo-red, or acid nigrosin. |