Chem. [f. the mod. Lat. name of the tree (Rhamnus) Frangul-a + -IN.] (See quot.) Hence Frangrulic (acid) a.
1864. Watts, Dict. Chem., II. 706. Frangulin.… A yellow crystallisable colouring matter, contained in the bark of the berry-bearing alder. Ibid. (1872), Suppl., 623. Frangulic acid.
