1956 as a colloquial abbreviation of bisexual.
a heavy brittle diamagnetic trivalent metallic factor (resembles arsenic and antimony chemically); often restored as a by-product from ores of various other metals
bi [sl.] [bisexual]
Bismuth forms several oxysulphides: Bi 4 O,S constitutes the mineral karelinite found at the Zavodinski mine in the Altai; B1603S4 and Bi 2 OsS have been prepared artificially.