tincar
[Ar. tinkār], altincar
[Ar. al-tinkār], (alch., in quot. sal ~ar) white sodium salt of boric acid, borax.recipe sal atincar libra 1M. ScotLumen250 (cf. Rob. Angl. (I)Alch.514b: †borteza [rec. 1: borich], quod Arabice tincar dicitur; LC269: tinkaar est borax).