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

A blackish coal-tar colour dye

• preconize
• preconized
• preconizes
• preconizing
• pre-conquest
• preconscious
• preconsciousness
• preconsonantal
• preconstruct
• preconstructed
• preconstructing
• preconstruction
• preconstructs
• preconsume
• preconsumed
• preconsumes
• preconsuming
• precontract
• precontracted
• precontracting
• precontracts
• precook
• precooked
• precooking
• precooks