paraphenylenediamine
noun
A white or reddish crystalline compound, C6H4(NH2)2, used as a photographic developer, for dyeing hair and fur, and in the manufacture of dyes.
Origin
Late 19th century; earliest use found in Journal of the Chemical Society.
- blackthorn
- blackthorn winter
- black-throat
- black-throated
- black-throated diver
- Black Thursday
- black tie
- black-tied
- black tin
- black tobacco
- black tongue
- blacktop
- black tracker
- black trader factory
- black tripe
- black truffle
- black trumpet
- Black Tuesday
- black turf
- black-veined
- black-veined white
- black velvet
- black vomit
- black vulture
- blackwall tyre