nigrosine
noun
any of the class of deep blue or black dyes obtained by the oxidation of aniline, used as coloring agents in inks and shoe polishes and for dyeing leather, wood, textiles, and furs.
nigrosin
-
a variation of
nigrosine.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
No bacteriologist before Miss Broadhurst, who began her long career by teaching biology at New Jersey State Normal School, seems to have used nigrosin to stain, and therefore to see, these measles inclusion bodies.
From Time Magazine Archive
Professor Hagan said that it was nigrosin ink, but he admitted that the only way to know was to test it.
From The Works of Robert G. Ingersoll, Vol. 10 (of 12) Dresden Edition?Legal by Robert Green Ingersoll
Their witnesses said they did not think it was nigrosin ink.
From The Works of Robert G. Ingersoll, Vol. 10 (of 12) Dresden Edition?Legal by Robert Green Ingersoll
Our experts said that they thought that the ink was nigrosin ink, and the fact that they wanted a test proves that they were sincere.
From The Works of Robert G. Ingersoll, Vol. 10 (of 12) Dresden Edition?Legal by Robert Green Ingersoll
Mr. Hodges, their expert, said it looked to him like logwood ink; that it had too much lustre for nigrosin, but he added that it was impossible to tell without a chemical test.
From The Works of Robert G. Ingersoll, Vol. 10 (of 12) Dresden Edition?Legal by Robert Green Ingersoll
