roccelline
/rɒkˈsɛliːn/(also roccellin) Chemistry
noun
A red azo dye used for wool and silk, made by coupling sulphonated azonaphthalene and β-naphthol. Now chiefly historical.
Origin
Mid 19th century (in an earlier sense). From scientific Latin Roccella + -ine.
- on a wind
- on a wing and a prayer
- on-axis
- Onazote
- on balance
- on-baller
- on-base
- on-beat
- on bended knee(s)
- on board
- onboard
- onboarding
- on book
- ONC
- on call
- on-carry
- once
- once again (or more)
- once and for all (or once for all)
- once and future
- once a ——, always a ——
- once bitten, twice shy
- once-born
- once-fired
- once-for-all