rubianicadj.
/ˌruːbɪˈanɪk/, U.S. /ˌrubiˈænɪk/ Chemistry. Now disused.
rubianic acid n. = ruberythric acid n. at ruberythric adj.
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the world > matter > chemistry > organic chemistry > acids obtained from plants or trees > [noun] > from roots
verdous acid1836
virginic acid1837
krameric acid1838
angelic acid1843
ruberythric acid1852
rubianic acid1855
cellulic acid1859
1855 E. Schunck in Philos. Trans. (Royal Soc.) 145 389 The latter [yellow powder] consists of a peculiar acid, to which I shall give the name of Rubianic Acid.
1922 Color Trade Jrnl. 10 135/1 Ruberythric acid and rubianic acid turned out to be one and the same thing.
This entry has been updated (OED Third Edition, March 2011; most recently modified version published online March 2022).
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