- A general name for alkaline sodium compounds such as caustic soda, bicarbonate of soda, washing soda and soda ash. They are not interchangeable.
- noun cocaine or crack. A term current among police and drug users in the late 1980s. From the resemblance and volatile effects of the drug(s).
Origin & History of “soda”
Soda comes from medieval Latin soda, which may have been derived from Latin sodānum ‘samphire, glasswort’ (the plant samphire was burned to obtain soda for making glass). Another of the uses of samphire was as a headache cure, and it has been speculated that sodānum may have come ultimately from Arabic sudā ‘headache’, a derivative of sada’a ‘split’. Sodium was coined from soda in 1807 by the English chemist Humphry Davy.