Glauber's salt

noun

Glau·​ber's salt ˈglau̇-bər(z)- 

: a colorless crystalline sulfate of sodium Na₂SO₄·10H₂O used especially in dyeing, as a cathartic, and in solar energy systems

—sometimes used in plural

called also Glauber salt

Word History

Etymology

Johann R. Glauber †1668 German chemist

First Known Use

1736, in the meaning defined above

Medical Definition

Glauber's salt

noun

Glau·​ber's salt ˌglau̇-bər(z)- 

variants also Glauber salt

-bər- 

: a colorless crystalline sodium sulfate Na₂SO₄·10H₂O used especially in dyeing, as a cathartic, and in solar energy systems

—sometimes used in plural