nigrosine /nigˈrō-sēn or -ro-sin/ or nigrosin /nigˈrō-sin/

A blackish coal-tar colour dye

• punch-up
• punch-ups
• punchy
• puncta
• punctate
• punctated
• punctation
• punctations
• punctator
• punctators
• punctilio
• punctilios
• punctilious
• punctiliously
• punctiliousness
• punctiliousnesses
• puncto
• puncto banco
• punctos
• punctual
• punctualist
• punctualists
• punctualities
• punctuality
• punctually